I had a pair of male dwarf gouramis when I made the decision to try to breed cherry shrimp in the 29 they lived in I moved them into my 55 gallon. I figured the plants I had in there would give them plenty of room to hide from the aggressive buenos aires tetras. Unfortunately, I was wrong so I'm going to have to move them again. I'd like to move them into a 5 gallon tank I have that is currently empty. Is this going to be fine as a semi-permanent tank for at least one of them or should I pull the trigger on another 20 or 29 gallon tank that I'd love?