My refugium is a bit messed up right now.
My return pump failed and I had no back up. I ran to
LFS 5 minutes before they closed for the weekend. The onl pump they had ended up to fitting in the proper compartment of the refugium. It had a tube filter on it plus I wrapped that filter in the loose (blue/white) filter material and had to stick it in the man compartment of the refugium. I had to spend $100 on the pump to make sure I had flow all weekend.
Not sure if the chato can go in there with the pump in the compartment?!?