Hey there, I have a question about Nerite Snails. I have a 2.5g tank, with live plants. It already has a betta in it, and he's thriving! I'm soon to put the indian almond leaves into the tank. My question is: 1) How many snails can I put into a 2.5g with a betta? 2) Can I feed my nerites, sinking algae wafers? 3) Who sells the best nerites?