sorry for the late update... main computer and backup computer have both crashed x.x;
I do think here was something off the first night, but after watching him I'm pretty sure the rest were either a tantrum or just trying to mess with me... sometimes I hate facial recognition >.<;
he's doing fine now; I decided it was best to opt out of keeping the snail, and his main tank is almost fully cleaned now. ^-^
he's still being a bit silly but other than the old tear in his fin he's doing well. I'm putting him on a dose of FW AQ Salt for the next day or two and then placinghim back in the old one. thanks for all the help <3