so I have a 300 gallon tank 28 by 30 by 84, I and getting 5, 3” rio mag umbee’s my plan is to grow them out and only keep one or two. I have 2 questions could I keep more than one male umbee in a tank without any females and is there any tank mates that I raise with the umbees that wouldn’t be a threat to them but could still survive, with lots of small holes in rock and driftwood, thanks



