20 gallon refugium


New member
My wife and I are going to plumb in a 20 long fuge to sit at the end of our tank stand. I have a bud who will drill the tank for 1" inflow and outflows connected to my 90 gallon's overflow.

However I want to use aragonite as my substrate in order to get my calc levels in the main tank for my 2 clams. Has anyone had a problem with this kind of substrate with inverts and serpent stars?


Another Day In Paradise
This is not mine,but looks pretty sweet.