Last Saturday I helped my son set up a new 10 gallon aquarium. It was an old tank, but clean. We added 2 platys and 2 different types of tetras. Everything was great..until this a.m. When we went to feed them, we discovered that we are infected with what the fish store people called "ich" I've been looking for info on it and it led me to this site. Any suggestions? We have lost 3 of the fish today! My son, who is 5, is heartbroken.(he names the fish!) The pet shop was kind of vauge in their suggestions. We've started the treatment they sold us. Should we just start over with a new tank? the one we have is a hand me down, so I won't complain if I have to get a whole new one. How can I clean it to be sure all the parasites are gone? Is bleach safe? Help!! It's not looking good for our last little platy.