Okay, so I found a really neat fish store and the lady raises them herself and has some beautiful fish so I went with her word but let me start with why I went for more fish in the first place... I bought a 55 gallon tank for my kiddos, it came with two bigger kissing fish, I'd say just smaler than my hand. One died in the move from one house to the other. I went to Petsmart and bought 4 black finned sharks and a pleco. Then, I found myself a really neat electric blue crawfish on Ebay, really pretty BTW. Everything went fine until I went to change part of the water. In our town, they do a monthly dump of chorine into the water supply and I hit that time of the month. I watched my four sharks die right in front of me . The kissing fish was fine and so were the pleco and crawdad. So I found out about this woman and how wonderful her fish store is and went. I came home with two irrodecent sharks, two goramis(sp?), and a massive huge Oscar. I informed her of what I already had in the tank and she said the only thing to watch for was the crawdad nipping at the Oscar since he likes the bottom. The Oscar ATE half of each of the sharks and ate my expensive crawdad. I took him back and she sent me home with more fish. I wanted to list what I currently have in there to make sure I'm okay with what I have, if I could get more or what. I have... the (now large) pleco, the big kissing fish, the med. two goramis, three tiger barbs, three green barbs, two long finned rosy barbs, and a male and female crab. The barbs have all been swimming together except for the rosy ones who swim all over the place independently and they have all been together about a week now and no misshaps yet or picking or anything. The tank has air stones, roman collumns, a pirate ship, lots of fake and real plants, and both sand AND gravel. Anything I should be worried about? Could I add more? What should I add if so? Never had this big of a tank and after all these misshaps, devestated BTW- my sharks were getting really big an I LOVED my crawdad-I really do not need to make any more mistakes. Any suggestions?