jrgilles
Well-known member
Hey guys, I was wondering if I could get some input on the best way to set up flow in my 75 gallon tank.
What I have: Neptune Apex Controller, return pump doing about 650 gallons at head pressure (aimed in 2 different directions.)
What I'm going to buy: 2-4 Koralia Evolution powerheads (controllable and at a great price)
Powerhead options:
750 GPH, 1050 GPH, 1400 GPH
I was originally planning on getting 4 powerheads. I would alternate between sets of 2 having a clockwise then counterclockwise rotation (as recommended by fragman.) Using the controller, I would have them power up and down in a fashion to simulate a smooth(ish) transition between the two directions of flow.
If I kept the tank at 30X circulation per hour...
that would be ~2200 GPH flow I would want. My return pump is giving me about 650, so that leaves around 1450 left.
So, options I'm now considering:
Buy 4X 750 GPH powerheads, have 2 on at any given time at opposite ends of the tank.
Buy 2X 1400 GPH powerheads, and have one on at any given time, with the powerheads again at opposite ends (the return pump will cross the flow and introduce some randomness.)
2 powerheads is cheaper than 4, but what do you guys think is the best setup flow wise?
Oh, I have SPS, LPS, Softies, and a few small fish. Tank setup is in my sig.
If any of you guys have some experience with flow setups, please enlighten me as to what you like. I've done some reading online, but would love to hear what you all have to say.
Thanks!
What I have: Neptune Apex Controller, return pump doing about 650 gallons at head pressure (aimed in 2 different directions.)
What I'm going to buy: 2-4 Koralia Evolution powerheads (controllable and at a great price)
Powerhead options:
750 GPH, 1050 GPH, 1400 GPH
I was originally planning on getting 4 powerheads. I would alternate between sets of 2 having a clockwise then counterclockwise rotation (as recommended by fragman.) Using the controller, I would have them power up and down in a fashion to simulate a smooth(ish) transition between the two directions of flow.
If I kept the tank at 30X circulation per hour...
that would be ~2200 GPH flow I would want. My return pump is giving me about 650, so that leaves around 1450 left.
So, options I'm now considering:
Buy 4X 750 GPH powerheads, have 2 on at any given time at opposite ends of the tank.
Buy 2X 1400 GPH powerheads, and have one on at any given time, with the powerheads again at opposite ends (the return pump will cross the flow and introduce some randomness.)
2 powerheads is cheaper than 4, but what do you guys think is the best setup flow wise?
Oh, I have SPS, LPS, Softies, and a few small fish. Tank setup is in my sig.
If any of you guys have some experience with flow setups, please enlighten me as to what you like. I've done some reading online, but would love to hear what you all have to say.
Thanks!
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