Conclusion

When I was younger, I decided that I wanted a fish. My mother was not as enthusiastic as I, so she told me that if I wanted a fish, I would have to do research. So I did. For a month. Nonstop. 

Lord Finneas

Needless to say, we ended up getting a fish shortly after, but, unfortunately, he has since passed away. Still, it would be a shame to put this knowledge to waste, so I decided I would share what I know with anybody who happens to be interested.

Thank you so much for reading my blog! I hope that all of you have learned something useful.

Life Spans

Freshwater Fish

Many people ask how long animals live. Scholars have been attempting to answer this question for a long time. Dogs live around 8-12 years, while cats live 12-14 years. The truth is that animals live as long as they are able to defend themselves and find food, barring any diseases or accidents. But what about fish? How long do fish live? 

Betta Fish

The two most popular species of fish, Bettas and Goldfish for example, are at opposite ends of the life cycle spectrum. Bettas have a life span of a little more than three years while Goldfish can live for decades. Life expectancy is usually not considered when people decide to add fish to their home. Life expectancy of fish in the wild is unknown; however, with proper care, captive fish can live for many years. Many freshwater fish live for about one to three years. Some of the more popular species with this short life span include Guppies, Platies, Mollies, Rainbowfish, Hatchetfish, Corydoras catfish, and Barbs.

Hatchetfish

There are also fish that live for about 3 to 5 years. These fish include Bettas, Gourami, and Danios. Fish that will live for up to 10 years include Tetras, Angelfish, Oscars, and Plecostomus (now that’s a nice Greek name!).

Goldfish

The popular freshwater fish with the longest life span is the one and only goldfish. In a healthy environment , they can live up to 15 years. The oldest goldfish on record actually lived into his 30s.

A less popular but extremely long-lived fish is the Koi. Koi normally live for 30 to 40 years, but the oldest Koi ever recorded was over 200 years old.

Saltwater Fish

Saltwater fish tend to be more difficult to keep in captivity, but if you provide them with the best possible environment (perfect water quality, excellent diet, and appropriate tank size), saltwater fish can live for many years. Most published information about the life span of saltwater fish are from public aquariums, where the fish are kept in the best possible conditions.

Raccoon Butterflyfish

Some saltwater species only live for an average of 2 to 4 years. These include Butterflyfish, Damselfish, Mandarins, Gobies, and Triggerfish. Most small tropical Seahorses that are available for aquariums live about 3 to 4 years. The larger Seahorses can live longer, but they are rarely available for the home aquarium. 

Seahorse

A few of the more hardy species can live up to and over 10 years, including Lionfish, Clownfish, Eels, and Groupers. There are also many varieties of Angelfish that can live quite a long time. The Queen Angelfish, French Angelfish, and Gray Angelfish can live up to 20 years and grow to a large adult size. For this reason, few mature adult Angelfish are kept in captivity for as long as 20 years.

Queen Angelfish

Well, that wraps things up for this time! Next week's entry, during which I will talk about my personal experiences with fish, will be the last, but I'll always be happy to answer any fish-related questions you may have.

References 

http://www.demogr.mpg.de/longevityrecords/

http://www.petplace.com/fish/life-expectancy-of-fish/page1.aspx

http://freshaquarium.about.com/cs/beginnerinfo/a/lifespan.htm

http://www.tpwd.state.tx.us/publications/nonpwdpubs/young_naturalist/animals/animal_life_spans/

Compatibility Charts

Hello, and thank you for sticking around!

Last week, I mentioned that not all fish breeds are compatible with others. "But how do I know which ones are and aren't?" you may be asking. Fear not, for dedicated aquarium hobbyists have taken it upon themselves to make charts just for people like you!

Please feel free to post your comments and let me know if you have any questions about the charts below.

Chart 1 (Saltwater)

Chart 2 (Freshwater)

Note: Bettas are a bit of a strange case. While you should be able to house two female bettas in the same tank with few issues, the same is not true for males. Male bettas will kill each other.

That's all for this week! Stay tuned!

Compatibility in the Tank

Once the decision has been made to add a fish tank to the family, how do you know which fish to get? There are hundreds of species, after all, and certain ones are incompatible. How do you know you haven't just created a recipe for disaster when you put gourami in with your bettas?

Well, first of all, don’t buy any fish without doing some pre-planning and research to figure out which breeds the fish you're interested in are compatible with. Sometimes, you’ll see a fish that’s practically begging to come home with you. You fall victim to its lures without knowledge of what it is, what it feeds on, how large it will get or whether any special care is required, and, most importantly, how likely it is to tear the other fish you want to shreds (or vice versa). Buying fish on impulse is almost always a bad decision.

There are a few things to think about before adding a fish to your tank. For instance, species that require a specific environment may not do as well in a tank that is different from their natural habitat. However, fish that adapt easily in a wide range of conditions are more likely to thrive.

If you decide to introduce more than one species in a tank, you need to make sure that they are compatible. Most beginners keep a community aquarium with a large assortment of colorful fish. Usually, they originate from different parts of the world and thus have adapted to different conditions. According to experts, their behavior patterns and food preferences may also vary. That being said, if they are not compatible, there will be challenges.

Peaceful fish do not harass each other. Fish that are exposed to continuous bullying are so physically stressed out that they are prone to getting sick.

Get lost!

The condition of the water may also play a factor. One species may thrive in a hard, alkaline environment while a new fish introduced fares better in soft, acidic water. The species least compatible with the water chemistry may not do so well in the tank.

Experts also advise that behavior patterns play a significant role. Fast swimmers may disturb the slower ones. Aggressive species often eat up the food supply more quickly, leaving very little for their introverted tankmates. Additional food to make up for it may increase the amount of uneaten food in the water, reducing the water quality.

Some fish are also territorial, which may increase conflict even among the ones with peaceful dispositions. Territorial species can limit the amount of space for others, especially if there aren't enough hiding places.

Behavior differences can be very disruptive. Even when fish have peaceful dispositions, conflict over things such as food, territory, and, in some cases, fin-nipping may arise. Even if you're absolutely sure the breeds you picked out are compatible, it's better to be safe than sorry.

Next week I'll post compatibility charts. That’s it for this time!

References:

http://animals.howstuffworks.com/pets/choosing-aquarium-fish.htm

http://tropicalfishandaquariums.com/Compatibility/index.php

http://saltaquarium.about.com/od/livestockcaretopicsindex/ss/fishcompatibilitychart.htm

Common Saltwater Fish Diseases

This week’s blog, we’ll look at a variety of common saltwater fish ailments, how to steer clear of them, treat them, and when possible, how to cure them. Some of the most common diseases in saltwater aquariums are Marine Velvet and Marine White Spot Disease. Pathogen epidemics often result in fish death if they aren't dealt with quickly. 

Marine fish can also give refuge to internal and external parasites in the wild. In nature, parasites rarely overwhelm the immune system and cause its demise. Parasites depend on the fish as a source of nutrient at times and it would be detrimental for the parasite to kill its host. Aqariumcommunity.com and the fishchannel.com provide great details on these diseases and other parasites that can be harmful to your swimmers. This is information from their websites:

Fish with Marine Velvet

Marine Velvet

Marine Velvet is cause by a saltwater parasite; Amylodinium. Amylodinium will typically attach the gills of the fish, but can also infect the skin. If you suspect that your fish has been infected with Marine Velvet, you can use a strong flashlight and light up the top of the fish when the rest of the room is darkened. If the gills and the sides of the fish that receives indirect lighting look velvet or as if dusted with gold, you should treat the fish for Amylodinium. 

Fish with Ich Disease

Marine White Spot (Ich)

Marine White Spot Disease is also known as marine Ich and marine Ick. The symptoms are very similar to those displayed by fish infected with freshwater Ich, but marine Ich is not caused by the same parasite a freshwater White Spot Disease (Ichthyophthirius). Marine White Spot Disease is caused by Cryptocaryon, a saltwater parasite. A marine fish that successfully combats an attack from Cryptocaryon can develop immunity that lasts up to 6 months.

Brooklynella

Brooklynella Hostilis

Brooklynella hostilis is a ciliated protozoan that lives in saltwater. An infected fish can become sluggish and will often take food into its mouth and spit it out. If Brooklynella hostilis colonizes the gills, the fish will experience breathing problems. Smear test from the gills is used to diagnose a Brooklynella hostilis infestation. You can also notice signs of Brooklynella hostilis on the skin of the fish. In the beginning, small areas will look faded and listless. As the infestation becomes more severe, these areas will grow and spread outwardly. The skin will become more and more damaged. Brooklynella hostilis is sometimes called "Clownfish Disease", but the parasite can infect a wide range of marine fish species.

Uronema Marinum

Uronema Marinum

Uronema marinum is a saltwater parasite that can grow rapidly in aquariums where the water quality is poor due to large amounts of organic matter. Be extra careful with the levels of nitrate and phosphate if you are having problems with Uronema marinum. The Yellow Tang is especially prone to Uronema marinum infestations, but the parasite is capable of infecting a wide range of fish species, including all the other Tangs. Seahorses can also suffer from Uronema marinum attacks. An infected fish will begin to scrub itself against rough surfaces in the aquarium. Sooner or later, it will become extremely exhausted and rise to the surface where it can gasp for air. Its colors will usually fade and the skin will eventually begin to die. The skin will look slimy, hemorrhagic lesions will manifest, and the eyes of the fish will usually turn clouded. If the Uronema marinum infestation progresses, the fish can become completely blind. Deaths are also common and recent research have shown that Uronema marinum do not only infect the skin and gills of the fish, but the kidney and brain as well.

Disease-related fish fatalities are the top reason for leaving the marine aquarium hobby. Taking good care and keeping informed will make the experience more rewarding.

A healthy Blue Tang Fish

Until next time!

References:

www.aquaticcommunity.com

www.fishchannel.com

Common Fresh Water Fish Diseases

Hey everyone!

Sorry I didn't post last week; I took some personal time off. I'm back this week with new information on common diseases fresh water fish may encounter in their tank environment.

One of the challenges of keeping an aquarium tank is that many diseases will make themselves at home in the aquatic environment.  There are hundreds of afflictions that can affect the health of your fish. The most common seen in are usually either bacterial or parasitic. Fungal infections sometimes occur, and occasionally physical afflictions.

It’s easy to involuntarily introduce fish diseases to the aquarium tank when buying new fish, plants and decorations. Bringing new living organisms into the aquarium is more risky than inserting a new piece of equipment. Luckily, most ailments are easily diagnosed and treated with success. Understanding how the home aquaria and its filtration systems work will help support aquatic life vital in preventing fish diseases. The basics of life support are the same whether you have a freshwater aquarium, saltwater aquarium, or a mini reef.

The most common fish diseases are White Spot Disease, Marine White Spot Disease, skin and/or gill flukes, Anchor Worms, Hole in the Head disease, Velvet, Marine Velvet, Fin Rot, TB (tuberculosis) and Dropsy. I’ll cover a few of the fresh water diseases in today’s blog. For more details on common fresh water diseases: symptoms, causes, and descriptions visit:

http://www.plantedtank.net/articles/Common-Freshwater-Fish-Diseases/13/

White Spot Disease

White spot disease, also known as ich or ick, is the distinguished by the white spots that develop on the body and/or fins of the fish. Heavy breathing can be another symptom. An infected fish will often scrub itself against a rough surface in the tank.

Gill Fluke

Skin and gill flukes are caused by parasitic flatworms. A healthy fish will usually withstand a small fluke attack, but a large infestation can be lethal since they can cause severe tissue damage and lesions.

Anchor Worms Near Fin

Anchor worms are thread-like worms that attach themselves to the head of the fish. They need to be treated with a remedy made special to kill anchor worms. Like ticks, never pull the worms using force since the head still stay attached to the fish and grow a new body.

Hole in the Head Disease 

Hole in the head disease is caused by “Hexamita,” a flagellated protozoan that is found in the gastrointestinal tracts of many fish species. Even healthy fish can carry these protozoa. If the water quality drops, or the fish is weakened by another problem, it can spread from the intestines via feces in the water and attack the outside of the fish. A small sore will form above the eyes of the fish and eventually grow into a large hole. Large fish species are more prone to hole in the head disease.

Knowing that these conditions exist is reason enough to make sure we take care of our fish friends to the best of our abilities. That's it for this time!

References:

http://www.plantedtank.net/articles/Common-Freshwater-Fish-Diseases/13/

http://www.aquaticcommunity.com/disease/

http://animal-world.com/encyclo/fresh/information/Diseases.htm

Aquatic Plants - The Science Backstory

In my last blog entry, I covered the basics of Aquatic Plants in aquarium life. This week, I will cover the nuts and bolts of how plant life affects the environment. In other words, the science behind the curtain of tank walls. So, let's hop right in with the first topic: Carbon Dioxide.

CARBON DIOXIDE (CO2)

Without carbon dioxide, plants cannot perform photosynthesis (the process where they turn light energy into energy that they can use). Most plants will do well with the carbon dioxide produced by breathing fish and other animals in the aquarium, but there are of course exceptions. Some aquarists use CO2 injections to promote plant growth. This can produce wonderful results when balanced with sufficient lighting and necessary nutrients. Even plants that would survive without any additional CO2 can start growing much more rapidly when they receive extra CO2. CO2 can come from fermentation or from a gas cylinder filled with liquid CO2. 

Fermentation
Producing CO2 through fermentation is actually quite straightforward and can be carried out even by aquarists on a limited budget. You will need a 1.5-2.0 liter plastic bottle. Poke a hole in the cap and let an airline tube run through it. (The attachment must be airtight.) The airline should ideally have a non-return valve. Fill half of the bottle with water. Shake in ½ cup of sugar and ½ teaspoon of baking yeast. Secure the cap and wait for the fermentation process to start. It should be up and running in no time, just like when you bake a loaf of bread. When gas starts to evaporate through the airline, attach an air stone to the tube and place it in the aquarium. The fermentation process will normally provide the aquarium with plenty of carbon dioxide for at least two weeks. 

Healthy Aquatic Plant Environment

NUTRIENTS

Just like terrestrial plants, aquarium plants need nutrients to survive.

Macro nutrients: Nitrogen, Phosphate, Potassium
Other nutrients: Boron, Iron, Nickel, Zinc

In addition to the elements mentioned above, plants need trace elements of many other elements as well. If you fail to provide your plants with all necessary nutrients, it can lead to stunted growth, yellow leaves or even prove fatal. So, how can nutrients enter the aquarium? Nutrients are present in tap water and well water.  They are present in fish food (and will therefore also be excreted by fish). Nutrients are present in potting soil and aquarium substrate. You can purchase special fertilizers intended for aquarium use.

Before you decide on using fertilizers, keep in mind that simply filling your aquarium with a lot of fertilizers will not aid plant growth. Fertilization must always be balanced with light and carbon dioxide. It is also very important to purchase a special aquarium fertilizer, since fertilizers for terrestrial plants contain too much nitrogen which will cause algae growth and injure the fish. 

SUBSTRATE

As I pointed out earlier, some aquarium plants must be planted in the substrate or in pots, while others grow attached to rocks, driftwood etcetera. There are also floating plants and plants that can grow in several different fashions. If you want to keep plant species that need a substrate to grow in, ideally chose a substrate where the particles are 1.5-3.0 mm. There are naturally exceptions to this rule, but many plant species can not tolerate finer substrates since their roots cannot handle anaerobic conditions well. When the particles are 1.5 mm or bigger, it is easier for water to circulate which prevents clogging.

When it comes to substrate depth, the requirements vary a lot from species to species. The popular Amazon Sword, will for instance grow quite big and need to be rooted in at least 8 cm of substrate.

Amazon Sword

PREVENTING DISEASE

Unhealthy Aquarium Plants

Only purchase vegetation that look healthy. Don’t buy flora from aquariums where the fish seem unhealthy. Plants can carry malicious microorganisms and infect your fishes. If you want to feel safe, sterilize the plants before you place them in your aquarium. You can for instance use a dilute solution of potassium permanganate (provided that you have plant and fish species that can handle traces of potassium permanganate). Keeping a plant in potassium permanganate for 10-15 minutes will kill most malevolent microorganisms.

Healthy Fresh Water Aquarium Flora

Remove all damaged leaves before planting. It is better to remove a lot of leaves than allow them to decay and pollute the water. Don’t panic if most leaves die, turn yellow or dissolve after planting. The shock of being repotted can make plants lose their leaves, but they’ll grow new ones.

That's it for this week!

Sources:

http://www.thetropicaltank.co.uk/plantbas.htm

http://www.aquaticcommunity.com/plants/grow.php

http://www.aquaticcommunity.com/plants/aquarium.php

Aquatic Plants

Aquatic plants serve many purposes in an aquarium, such as adding oxygen to the water and helping to keep the water chemicals balanced. Caring for aquarium plants isn’t hard as long as you choose suitable plant species. All aquarium plants need light, carbon dioxide and nutrients to live. If you have an aquarium with normal incandescent lighting or subdued fluorescent lights, stick to plants that have low light requirements, like JavaFern. If you don’t want to use carbon dioxide boosters, stick to plant species that will do fine with the amount of carbon dioxide that’s produced by your fish. If you don’t want to use fertilization, choose a plant species that will absorb the nutrients it needs from the water.

But why keep aquarium plants? Well, live aquarium plants help keep the water quality up by binding organic waste. (Note: please keep in mind that dead and decaying parts of plants must be pruned away – otherwise, the organic waste will be released back into the water.)

Live aquarium plants will convert carbon dioxide into oxygen and will prevent algae infestation by competing with algae for nutrients. Many aquarium fish species are from waters where aquatic plants are common. They feel more at home in a planted aquarium. Fish that like their environment are less prone to illness and tend to be more active, display vivid colors and spawn. 

Keeping aquarium plants can reduce your fishes’ stress levels. Why? Two reasons: one, they decrease the amount of fighting by forming many small territories in the aquarium instead of one big one; and two, they provide weaker fish with hiding spots where they can find sanctuary if they are being bullied by larger fish.

Photo courtesy of: www.freshwateraquariumplants.com

Planting aquarium flora can be done in a variety of ways that vary from species to species. Some plants should be planted in the substrate or in a pot. Other plants should be anchored to driftwood, rocks or similar. There are even some plants that just float around freely in the water!

Potted aquarium plants are quite common since they’re easy to move around without disturbing the tank’s layout. When the plant outgrows its pot, you simply repot it just like you would with a normal houseplant. Many species can be broken up and divided into several smaller plants.

Many different types of pots can be used in the aquarium as long as they don’t contain any substances capable of polluting the water. Plastic pots, bottle bottoms, yoghurt containers, and similar are inexpensive alternatives, while clay pots tend to be somewhat more expensive.

When potting your plant, use potting soil and plenty of water. Moisten the soil to drive out any pockets of air before you pot your plant. Fill 2/3 of the container with the wet soil and use your finger to make a small hole for the root system of your plant. Place the roots in the hole and carefully fill the rest of the container with the soil, then proceed to add a layer of aquarium gravel on top of it. Before placing the pot in your aquarium, submerse it in water for a few minutes to remove air that got in while you where planting. 

Different plant species also have different requirements when it comes to lighting. Some aquarium hobbyists claim that planted aquariums are really a pain to keep, but this is usually because they buy plants without learning how plants should be cared for than it actually being hard. It’s easy to understand why plants rapidly wilt and die in the aquarium of a newbie, and why an average hobbyist feels planted aquariums are impossible to keep.

fluorescent aquarium light 

As a rule, it is suggested that planted aquariums get 0.5-1.0 watts of fluorescent light per liter of water. Generally speaking, a 50 liter aquarium with standard dimensions will therefore require 0.5 watts x 50 = 25 watts. This rule will vary if you keep really high demanding or low demanding species, if your aquarium is very deep, or if your aquarium is really densely planted. 

Incandescent lighting is common with beginners. There are many low demanding plant species that'll do well with nothing but incandescent lights, but the problem is that incandescent lights tend to get too warm. This will affect the water temperature in your aquarium.  Investing in fluorescent lights can therefore save you money in the long run.

Incandescent lighting

Try to mimic the natural day length for your plants species. Many popular aquarium plants are tropical and are therefore used to 12 hours of light a day. If you keep temperate species, give them at least 14 hours of light each day during the summer and no more than 10 hours a day during the winter. Keeping the lights on 24/7 will aid algae growth and may also disturb your fish.

Still, keep in mind that the plants you choose may have different lighting requirements. Do the necessary research before you add anything to your tank.

Next time, I’ll talk about the science behind the carbon dioxide, nutrients, and substrate levels for your aquatic vegetation. Stay tuned!

Sources:

http://www.thetropicaltank.co.uk/plantbas.htm

http://www.aquaticcommunity.com/plants/grow.php

http://www.aquaticcommunity.com/plants/aquarium.php
www.freshwateraquariumplants.com