Hi everyone. I have a 20 gal high tank. Currently there is 5 neons, 3 male guppies, 1 sunset gourami, 5 nerite snails, 4 amano shrimp and 1 albino cory cat. I want to rehome the cory. I know I should have more but I just don't seem to have any luck with them. My wife wants me to get another fish or 2 but I'm not sure what to get or is my tank fully stocked. Thanks for your replies.