I don't know about GPH when it comes down to it. I use the check the current for enough flow method..LOL......You want the top to boil, and the corals if any, to dance in the flow. Some areas will have a strong flow and some not so much, but at least some flow in every area. I use a stick and tie a thin plastic ribbon on it to test flow. If the ribbon goes limp you have a dead spot adjust the power head.
If you get a maxijet utility type PH you can rig a spray bar from PVC pipe on it ..drill some holes and cap the end..it works great for water flow on the top to free up your PHs for the lower points in the tank. If you can find grey PVC it won't hardly even show...coraline will cover it either way.
I recently asked a similar question and got slapped with the "How much can your overflow handle" response, but it's true, how much can your overflow handle?
Quote:
Originally Posted by BTLDreefhttp:///forum/thread/386061/circulation-question#post_3388705
I recently asked a similar question and got slapped with the "How much can your overflow handle" response, but it's true, how much can your overflow handle?
Wouldn't the overflow thing be concering the return pump, not the power heads that just circulate the water. Any idea why what GPH circulates would be considered?
Wouldn't the overflow thing be concering the return pump, not the power heads that just circulate the water. Any idea why what GPH circulates would be considered?
Because it will depend on how much the return pumps can push, then you add to that with powerheads.