I now have my two gouramis in my 10 gallon do you guys think that is overcrowded they seem less active in there but I also moved thw whole tank to the bedroom that has alot less light? MY twenty gallon is currently empty and I might do a plant only tank? Do people do this? Also my 70 gallon has 1 medim sized 5 inch tiger oscar and a severum and a convict and a chinese algae eater and a pocosto....whatever and one really old ramshorn snail everyting seems awsome in there with lots of rocks and caves...but is this overcrowded