Your Fish

This is my 300l (ca. 75 gal.) malawi tank with fishes / cichlids / mbuna from lake Malawi, east africa. My Malawi tank / aquarium is decorated only with rocks, this is necessary because mbuna from lake malawi are rock dwelling cichlids. Mbuna like rocks, caves and sand, so the malawi tank has to be decorated with huge stones. They are quite agressive and territoral at times but belong to the most beautiful and colorful sweetwater fishes.

In my Malawi tank, i keep Labeotropheus trewavasae, Tropheops Macrophtalmus, Pseudotropheus Saulosi, Maylandia Estherae, Labidochromis Hongi and Labidochromis caeruleus (Yellow). Especially the Labeotropheus and Tropheops are mbuna / mbunas that look very good and show interesting behaviour.

Tropheops macrophthalmus is the only mbuna / cichlid / fish in my malawi tank that has got a name. And no, its not nemo! I call him "Saddam" because he is sometimes a little tyrant!

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At the Aquarium of the Pacific in Long Beach a diver talks about the animals in the exhibit while underwater, Lonn Friend comments at the end.

Aquarium of the Pacific-Long Beach, California
August 14, 2006

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Practical Fishkeeping magazine online shows you how to set up a large tropical freshwater aquarium.

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http://www.FreeScienceLectures.com

The giant octopus is extremely common throughout the Pacific North West and they held a regular spot on display of the Seattle Aquarium over the years. But when the keepers decided to move one into a larger tank with sharks and other big fish they assumed that octopus' strength and camouflage would keep it safe. As it turns out they were tragically mistaken.

What was happening in aquarium was a mystery. Each week keepers were finding shark carcasses in the bottom of the tank. Week after week the three to four feet sharks kept vanishing. So one night someone staid up to see who the culprit was...

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Easy to maintain. No more massive cleaning. Fish can navigate from bottom to top aquarium through the opening outlet without restriction. Effective submersible box filter helps to maintain clear water. Waterfall on left is to provide extra oxygenation.
ROLE OF BACTERIA IN THE NITROGEN CYCLE

Many different kinds of bacteria are present in our bodies and throughout the environment, including water. There are aerobic (good) bacteria, which require oxygen, and anaerobic (bad) bacteria, which do not require oxygen.

The bacteria in the aquarium will establish themselves on all the surfaces that are suitable for them to live on. These include the gravel, ornaments, tank walls and more importantly, the filter, where a majority of them will accumulate.

Aerobic bacteria need three things to survive: a habitat, food and oxygen. The filter contains a medium that provides a large surface area on which bacteria colonies can establish themselves. The water flowing through the filter provides them with good food and oxygen. Food is derived from the decaying organic material in the water column ( uneaten food, fish waste, decaying plant matter). And the movement of flowing water will permit gaseous exchanges to occur, and as a result, oxygen to be produced.

Normally, it takes the good bacteria approximately six to eight to be properly established before they can cope with a new aquarium's bio-load.

The environment in a newly set-up aquarium is a sterile one. At this point, there simply any enough good bacteria to take on the bio-load. Therefore the amount of fish and food added to it should be limited, until adequate bacteria colonies are established.

The first bacteria that develop are the nitrosomonas, which are hardy and efficient. Once established, these bacteria ingest and break down ammonia into nitrite -- this process occurs in the first stage of the nitrogen cycle. Ammonia, a by-product derived from the decomposition of the organic matter, is extremely toxic to fish. Its level will peak then decline, as the growing population of nitrosomonas feed on it.

In the next stage of the cycle, bacteria called nitrobacter will in turn ingest the nitrite and convert it into nitrate, which is the least toxic form of the three by-products. However, unlike nitrosomonas, nitrobacter are slower to develop and less hardy. As they are not as robust and easily affected by chemical treatments and changes in water quality.

In nature, plants and algae absorb nitrate for use in metabolic processes: but in an aquarium, it is almost impossible to have a large enough number of plants to absorb the entire nitrate in it. Therefore, the best way to remove nitrate and keep the environment stable is through regular water change.

For more infor call 98584206 Mr. Ho (Singapore) or email hsk_7@Hotmail.com. Thank you..... For more video search for .. FISHFREEDOM

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Opry Mills Mall in Nashville, Tennessee.
Please visit NASHLINKS.COM

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Our trip to the aquarium.

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DVD available at www.underseadiscovery.com
Visit www.underseadiscovery.com to discover more about Wayne Shang Marine Aquariums.

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David Glover, conductor
Scott Meek and Chia-Lin Yang, pianos I and II
Indiana University, February 2007

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This underwater restroom built into the side of an aquarium is located at a cafe in Akashi, Japan.

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