So I got my betta a new 2.5 gallon tank a while ago (it came on Monday). Before he was in an unheated 1 gallon (which stayed at about 72 degrees - I kept the heat on in my room). He was quite active in that tank, always swimming around. So I put him in his new tank, which has a heater! The temperature when I first put him in was also about 72 degrees, and it gradually warmed up as the heater kicked in, and now it is at about 80.
I had to take the filter out because it was too strong for little Po, and I was worried about him. So on Tuesday and Wednesday he seemed to be doing his normal thing, swimming around quite a bit. But today... he isn't doing ANYTHING. He is just sitting at the top of his tank, not even moving his little fins. In his 1 gallon, he made a bubble nest pretty quickly after I'd change his water, and he hasn't made one in his new tank yet! Also, the ammonia is testing at 0, so I don't think that's it...
I'm SO worried and I don't know what to do! This is what he is doing ALL the time (sorry for the grey-ness... camera doesn't like shooting through the tank. The tank isn't murky, it is just my camera)