Temp? I used to run my tank around 80 figuring higher temp would equal more growth. Now I am running it at 77 and my CUC has been much hardier. Maybe a coincidence as the tank is also more mature, but I do think dropping the temp a few degrees has helped.I do want to buy snails, but I also want to get to the root of the problem. Plus Everytime I buy snails they always die pretty quick. I'm not sure why. Maybe I'm starving them to death. I've never fed my snails before.