So this is my first time on this site and I read everything I could about sick bettas while I was at work. But I don't what my fish might be sick of. I just looked at him. I have a 3 gallon 360 tank. The pump/filter runs down the center of the tank is closed and Dragon (betta) just sits on top of it. He's been like that since I changed his water 2 days ago. Which is also when I got two new snails to put into it. He eats like he normally does but he is no longer active. Kinda looks a little pale. Swims normal when he does move but rarely moves from the top of the tank. He's not gasping for air. But I can't tell if his gills are moving at all. He's a really dark blue. Can someone help me, possibly?