I recently set up a FW tank. I've checked the water and have added my beginning fish. I chose gouramis to start with because I heard/read they were very hardy. The local pet store helped me choose 3 gouramis to start with, 2 female and one male. I'd like to add a few smaller fish to the tank. But I have no idea on what to add, or if anything would be suitable. I was talking to a lady at the local pet store and she suggested an irrediscent shark, but that turned out to be way to aggressive for my gouramis and luckily the LPS took him back. Any advice would be greatly appreciated.