I went to wal-mart today and picked up a 7.5 watt junior heater. Its one of the plastic non-adjustable kinds. On the instructions it says not to put your fingers in the water while the heater is plugged in, so will it shock me if I do? Last time I ignored instructions like that I got shocked. Its gonna be a useless heater if I can't play with my fish 

) I may just give up on the small tank and get a bigger one, maybe even divide up my extra 10 gallon. I think I'll find a nice arboreal tarantula for the 1 gallon.