ryshark
Aquarium Advice Addict
What is a good rule of thumb to figure how much water circulation you need in a reef tank? How many gallons per hour should the powerheads be putting out? NOT counting the return water from the sump. Also, should the powerheads be pointing in the same direction to have the water circulate in one direction, "whirlpool," Or is it better to point them in different directions. Thanks again, you guys are a huge help. I have a 75gallon tank and plan to stock an assortment of corals.