I just purchased three damsels 2 of which are blue w/yellow bellies and one is just blue. In my 29 I have 4 damsels that are blue w/yellow tails and in my 75 I have a blk and wht striped, a blue neon damsel, a tomato clown and a lawnmower blenny. My ? is which tank would my three new damsels have a better chance of survival in?