I just set up a 29 gallon tank and ran a full cycle and added my first two fish today before finding this site. I added a pictus catfish and a red tailed shark. The person at the store said that these two would be compatible and comfortable in this size tank. Additionally they informed me that I could add many more fish to fill out the tank. Now im reading about the pictus and how it should have at least 55 gallons!! is my tank already overstocked? Can i still add more fish? Suggestions? Thanks!!