arial small Hi i am a goldfish keeper after my last goldfish died a week ago (i had it for 10 years). I have decited that I would like to have differant types of fish in my tank. Now i need to know which kind of fish will survive in a 2.5 gallon tank and how many i can have in it. I NEED MY FISH TANK I CAN NOT SLEEP WITHOUT MY FISH TANK. I would like to see differant types of fish and differant colored fish in the tank can someone help me