i3k
Aquarium Advice FINatic
I have 4 panda corys in a 30gal. I've had them for over two months now and they have been doing good. About 3-4 days ago I noticed one of the corys started swimming in circles up against the side of the tank. All day long it will swim in 10" radius circles. When I feed the fish, this cory will come down and start digging around the gravel searching for food. Once the food is gone, it's back to swimming in circles non-stop. First thing I did was test for ammonia as I though the cory might be stressed. The test shows no ammonia in the water. The pH is around 7.6. Temperature is around 79/80 degrees. I did a 40% water change about 5 days ago and that's when the swimming in circles started. Is something in the water bothering the fish? I definitely don't think this is normal behavior.
This is in a 30gal established tank that has been running for years. Water changes are done every 12 days. I feed the fish tetra-color tropical granules, tetra-min flakes, bloodworms, tuebifex worms, and bottom feeders wafers...so they definitely get good nutrition.
This is in a 30gal established tank that has been running for years. Water changes are done every 12 days. I feed the fish tetra-color tropical granules, tetra-min flakes, bloodworms, tuebifex worms, and bottom feeders wafers...so they definitely get good nutrition.