Pet snail and/or fish in small tank?

h0w small a tank? neons need to be in groups of 6 or more, not single, so i would say if your tank is under 10 gallons, go with a betta fish, they are ideally housed alone, and will be fine in anything over 2 gallons, preferrably 5 gallons though. make sure you have a filter and a heater. if you get a betta dont get a snail as all bettas i have ever owned have bitten the snails whenever they come out of their shells, but you can keep a couple of apple snails as a pet instead of fish, they are easy to keep, and need a male and female to reproduce, so there wont be hundreds of babies to contend with. good luck in whatever you choose.