I have a 20 gallon tank which I am going to stock with my male betta and 4-6 cories. I would really like to have a few more fish though to add a little more excitement to the tank. What fish, if any, could live peacefully in a 20 gallon with a betta and cories?
I don't want there to be any chance for fin nipping since my betta's fins are very delicate and he is prone to fin rot so I don't think fish like tetras would work. I also don't want any more bottom feeders since I will be getting corydoras. Since I am inexperienced with fish, I want something that is easy to care for and I won't get any more fish if there's a chance of overstocking. Are there any fish that would work for my tank?