power heads?
- Thread starter canine
- Start date
integral9
Member
A good rule of thumb is that for reef tanks you need 15x to 30x your total volume in gallons per hour of circulation. ie. a 90g tank needs about 1500GPH of flow. So as long as all your PH together produce around 1500GPH or more of flow you should be fine. (you can add the GPH of all the PH together so long as they are all in the tank and on at the same time)
ps.
You might want to ditch the bubbles, you'll just get salt crystals all over the top of your tank. Your skimmer should be plenty for oxygenating the water.
What kind of filtration are you using?
ps.
You might want to ditch the bubbles, you'll just get salt crystals all over the top of your tank. Your skimmer should be plenty for oxygenating the water.
What kind of filtration are you using?
integral9
Member
(Assuming you have a sump) If the skimmer is in sump, then you cannot add the skimmer's pump GPH to the total since it's only circulating in your sump. However you can add the return pump's GPH, but don't forget to calculate head pressure and then recalculate the GPH from there. eg. My Mag5 is rated for 500GPH, but only produces about 400 w/ the head pressure of lifting water 3ft up into the tank.
canine
Member
The skimmer is inside the sump so I will not take that into the calculation. The return pump I have is rated for 1000 gals per hour but I had to put a in line ball valve to reduce the flow. So between that and the length of return hose I would guess I'm at around 600-700 gals per hour. Each ph is rated for up to 200 gph. I will probably just get bigger phs to be on the safe side. Thanks for the info.
B
bacardi151
Guest
You may also want to consider a closed loop setup. I have 2 PH's in my 75 which I'm looking fwd to replacing with a CL.
Just a thought
Just a thought
integral9
Member
Originally Posted by Canine
The skimmer is inside the sump so I will not take that into the calculation. The return pump I have is rated for 1000 gals per hour but I had to put a in line ball valve to reduce the flow. So between that and the length of return hose I would guess I'm at around 600-700 gals per hour. Each ph is rated for up to 200 gph. I will probably just get bigger phs to be on the safe side. Thanks for the info.
I'd put in a second return line or even split the line 3 ways, 2 returns to the tank and 1 return back into the sump for a second round of filtration (a loop back, if you will). Make sure the return to the sump is smaller or put another ball valve on it to restrict the flow, else the head pressure from the other lines will force more water back into the sump than is desirable.
The skimmer is inside the sump so I will not take that into the calculation. The return pump I have is rated for 1000 gals per hour but I had to put a in line ball valve to reduce the flow. So between that and the length of return hose I would guess I'm at around 600-700 gals per hour. Each ph is rated for up to 200 gph. I will probably just get bigger phs to be on the safe side. Thanks for the info.
I'd put in a second return line or even split the line 3 ways, 2 returns to the tank and 1 return back into the sump for a second round of filtration (a loop back, if you will). Make sure the return to the sump is smaller or put another ball valve on it to restrict the flow, else the head pressure from the other lines will force more water back into the sump than is desirable.