Hey everyone, I recently filled up my old 30 gallon tank... had it empty for a couple months after my nice little Oscar and algae eater passed on... I left the old gravel in as well as the little castle and fake plastic reef. I tested the PH, Ammonia, and Nitrites after filling the tank up and letting the filter run for 7 days and all the levels seemed to be normal to their test sheets. I got 2 of these little orange fish as well as 2 of these silver dollar fish (wish i remembered the names!). The guy at the store said the ammonia will go up and I should do about a 5 gallon water swap which I did tonight, I will check the levels in a bit. Just wondering if there was a good fish resource site so I can look up what I have... thanks!