I would like to get the powerheads out of my tank. I want to build a Calfo manifold but i am not sure on what pump to use. My tank is a 30g cube with mostly SPS.
It will have to be an internal pump that will push a head of 4 foot. Right now i use a Mag 5 for a return. Do you think that it will be enough or should i go for a higher rated pump like a mag 7 or 9?
It will have to be an internal pump that will push a head of 4 foot. Right now i use a Mag 5 for a return. Do you think that it will be enough or should i go for a higher rated pump like a mag 7 or 9?