My mother is a preschool teacher and next week will be "fish" week for her class. She likes her classes to be very visual and hands on so she wants to have some fish in the room. I was thinking since petsmart sells a 2.5 gallon tank for like $10, we could buy that and a few small fish like zebra danios, and use some gravel and a plastic plants from my tank. My question is will the fish be ok in there for a week (5 days) with out a filter or being cycled. after the five days i would put the fish in my tank. My next question is about the snails. My girlfriend wants to use the 2.5 gallon tank after to make a snail only tank for her desk. Could this be done? if so What would need to be needed to setup the tank? thanks