LOL, I love how you Americans need chillers in tropical tanks. Canadians would never dream of using them. :P

I love that snail in the second video that looks like it's trying to jump over the rock. Those guys are a lot more entertaining than Nerite snails.

It's too bad about your tank though. My grandpa has also had disasters with his fish hobby. One time, he introduced a wild fish, not thinking that it might be diseased. All 3000 or so of the guppies he had in that tank were dead the next morning.