Saturday, March 2, 2013

Feeding behavior of my 29 gallon community/loach tank

This video shows how my fish interact during feeding. The floating blob is a cube of tubifex worms. A carelessly assembled community tank is a habitat full of aggression and health problems. Whenever placing a new species in your tank (or another member of an existing species, such as with rainbow sharks) the balance of the biological and social hierarchy within that aquarium is compromised. At the moment, all of the fish in my 29 gallon are seemingly happy and healthy, But most of the species contained within will soon need to be re-located to the 75 gallon tank I have lined-up to accommodate their adult sizes. Weather loaches and plecostomus each can grow up to a foot in length, rainbow sharks to 7 or 8" and if my "common" goldfish Brad doesn't slow down he'll be the size of a football in another year. The rainbow is the most aggressive of the fish; when housed with smaller fish he has the tendency to chase, but not bite. I recently saw a pair of fry-sized rainbows in a tank at my LFS going at each other, their red fins flashing like lasers. As a general rule aggression issues will be lessened or eradicated if the most temperamental fish is the smallest in the tank. You can see in the videos that much like a real shark at feeding time he hovers in spiraling circles around the feeding zone, giving way to the bigger fish and collecting their left-overs. As he has grown in size (nearly an inch in the 5 of 6 months I've owned him) he has grown more bold, and circles closer <b>...</b>
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