I've had my Betta (named Belly) for about 4 months now. He lives in a 2-gallon, filtered, unheated, lightly planted hexagon-shaped tank. He seemed really happy in his environment (blowing bubbles, interactive, etc.), that is, until recently. I should mention that I've been trying to desperatley get rid of the algae that has been clouding his water in the last month or so... performing water changes every few days, using water conditioner.
Just a couple days ago, I approached his tank and he FREAKED OUT like I had never seen before! He then took a nose dive right into the glass stones I use as decorative gravel...and he just lied there, head in the gravel, not moving. I was quite upset...I thought he was dead. When I went to scoop him out, he freaked out again & went to the top of the tank and stayed there.
I'm in the process of getting Belly a larger tank with a heater & filter...I've placed him in another container with clean water. He's still acting scared. I'm really worried about him.
Has anyone ever heard of this?