I know Mystery Snails are a pretty popular companion for Bettas, and was wondering if maybe someone can come up with an explanation.
So, I set up my tank in early July, I think. I had an undergravel filter. Last weekend, after an awesome garage sale trip and a quick stop at PetCo, I had everything I needed to build myself a sponge filter. I took both Cesar (my Betta) and my Mystery Snail out of the tank. When I removed the UGF an UNBELIEVABLE amount of debris came up. I was quite shocked. I am very diligent with my gravel vac. Anyway, I got out as much as I could. I would gravel vac until I was out of water, put more water in, suck up more stuff, etc until it was nice and clean.
I acclimated Cesar and my snail the exact same to the new (super clean :D) water. Cesar has been doing just fine ever since. My snail, not so much. The next morning he was floating. I read they could do that because of adverse conditions. Well I figured this is the cleanest the water has probably ever been in, so it couldn't be water quality. The next morning he had sunk, so I gave him a Spinach leaf. I'm not sure if he ate any of it though. So all throughout this past week he'd be floating, or sunk on the bottom, off and on. One day he was out of his shell and cruising around, but then he'd go back to floating. Today he was officially dead (smell test) at the bottom of the tank.
Any ideas? What could have happened? I'd like to get another snail or perhaps a shrimp (I had a shrimp but he died...). But apparently, the only thing I can keep alive is my Betta