Well the parrots are going to be moved to the 75. Then that leaves me with an empty 29. I was thinking a 29 bare bottom with a marineland emperor 400, air stone, and heater. No decorations or substrate. So is it possible to keep an oranda or 2 in a 29 gallon OR a ranchu or 2 in a 29 gallon OR 1 oranda and 1 ranchu in a 29 gallon. Im afraid the tank is too small for them.