Okay, so the tank is now about 71.3 degrees, and the larger sturgeon is starting to swim around.
I understand, but for the air conditioner the tank is in a large area between the living room and the kitchen, and there are large opens to walk through. Everything is connected temp wise. In my absence the tank has 3 large aerators so that the tank at least has enough dissolved o2 for them until I arrive home and cold the tank down. I also have a powerhead with a air hose attached to a venturi valve so that is also pumps air into the tankOr, at the very least, a dedicated window air conditioner for the room the sturgeon tank is in. Your absence is not license for not properly maintaining this species that you took on.
I know, but the problem is that the lps around me only carry $300-500 chillers for large tanks. The only ones I can get too on a regular basis, which are petco and petsmart. I've haven't gotten the time to check out others like Ocean Floor.You might want to look into getting a chiller.