What are your thoughts on stocking a tank? I feel like now that I have become more experienced I have a different definition of stocking a tank. You have to think "Can I keep the tank clean?", then you have to take account of fish behaviors. If you are overstocking, you need to get a feel for the fish. My sorority is overstocked, but the only fish are cories ad bettas. The behavioral habits of these fish allows you to overstock, if you have a good "Fish" sense.