I'm using a 4" Mesh sock right now but I want to move to a 2" Felt sock so I have more sump real estate but I just can't seem to find any. They're all 4" or 7".
Anyone know if there exists a 2" sock?
Also is 200 micron the norm for reef tanks?
Anyone know if there exists a 2" sock?
Also is 200 micron the norm for reef tanks?