As some of you know I have a large Umbee and large male dovi and he has a lady. I need something to chill these fish out so they dont dump half the water on the walls and floor. Is tranquil what I need or is there something else? When I receive fish, the water is blue but they are still very much active, I guess this is called Bag Buddies or Trance? Anyways, which should I use to transport these guys? Thanks