I have the 6g fluval edge sitting in my attic since they 1st came out, it was a gift and I was going to use it for a HM Betta but I don't like the idea of no air gap for them ( even tho the box clearly says they can go in there -_-' ) but I have been seeing a few really nice looking shrimp tanks on YouTube and I am thinking about having a heavily planted tiger shrimp tank for my office. but I was wondering if I could add a small shoal of something like mosquito rasbora or something similar? Any thoughts appreciated. Thanks.