My Betta fish is floating at the top of my tank not doing much, and I have no idea why. Before This he was hiding all the time, but now he is just at the top of the tank. He has not eaten in days (that I know of), I have tried two different foods at this point. He wouldn't stop hiding, and he is now doing nothing at the top of the tank. I need help. Is it my flow or is it something else that I am unaware might be happening. I dosed seachem prime just now (a decent sized dose), so that should help if it is water chemistry. (I just did a water change yesterday as well). He is just kinda letting the filter push him around. I fed him some food right in front of him, and he did not eat. I have no idea what is going on, so help is much appreciated.