- Location
- Staten Island
Im setting up a 120 gallon reef ready tank (4X2X2). 1 corner overflow with a mag drive 9.5 return, 1" drain & 3/4" return. Im getting lots of bubbles coming down the drain, also very noisy. I have pvc with 1 elbow going into soft tubing going into filter sock - No livestock or rock in tank, Im just testing with fresh water first. Need some advice on this one as this is my first RR tank. Thanks.