My cories have been acting slightly strange recently. I have a 16 Gallon lightly planted bow front. They normally hang out on the bottom and slurp up any leftovers, only jetting to the top once in a while gulping air (this is normal I hear). I moved about 4 months ago and after the move they kind of hid in a cave rarely coming out. Now all of a sudden they are out ALL the time. However they dont spend much time at the bottom of the tank. Sometimes they are at the surface blowing bubbles, but most of the time they just hover in the middle of the water column. There is no signs of stress on any of the fish in the tank, and water parameters are the same as they have been ever since I got the cories. Anyone else see cories acting like this?
PS: I have an air stone and a HOB Aquaclear filter so there should be plenty of oxygen dissolved.
PS: I have an air stone and a HOB Aquaclear filter so there should be plenty of oxygen dissolved.
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