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11-30-2005, 10:32 PM
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#1 (permalink)
| | Plankton
Join Date: Oct 2005
Posts: 5
Karma: 8
 |  Placing Powerheads
Hi All,
Just wondering where the best place to put the powerheads are? (if there is one)
Also, I have a 70g tank and was wonder how many powerheads I would need and what sort of flow rate they should have etc | 
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12-01-2005, 05:56 AM
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#2 (permalink)
| | Stylophora
Join Date: Aug 2004 Location: Montreal, QC,Quebec Age: 29
Posts: 999
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If im not mistaken, i think from 10 to 20 time per hour turnover, you will be just fine... as for powerhead placement it all depends on your rock work. Place them in a way that the water current isnt going in a circle around the tank. Oh and check for dead spots, ive read about using some fishing wire and holding it at different spots in the tank. If the wire doesnt move and stays vertical you got a dead spot so adjust powerhead in consequence.
Marc. _________ 
20Gal, 45 lbs LR, 65W PC 10 000K + 65W PC 20 000K + 10Gal sump/fuge
Livestock :hermit and snails, Green star polyps, Button polyps, Finger leather, Xenia, Zoanthids, Mushrooms, Yellow polyps, montipora digitata, acropora, ?mistery polyps?, mistery crab, six line wrasse | |
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12-16-2005, 09:40 AM
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#3 (permalink)
| | Plankton
Join Date: May 2005
Posts: 14
Karma: 2
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Honestly I would shoot for more along the lines of 20-30x turnover at least. Flow IMHO is just as important as lighting. As far as placement...I would put one on each back corner of the tank shooting towards the center of the front panel. You will inevitably have dead spots so you will need to tweak your powerheads or strategically place and additional powerhead(s). Check out the SEIO pumps...they give you pretty good bang for your buck. I'd say two 820s would work pretty well.
Good Luck!
billpa | |
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12-17-2005, 12:07 AM
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#4 (permalink)
| | Plankton
Join Date: Mar 2005 Location: Reno, NV,Nevada
Posts: 14
Karma: 2
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I have about 30x turnover in my tank. I think it is a good rate. I wouldn't want any less, and I'm sure a little more could only be better. | |
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12-17-2005, 12:30 AM
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#5 (permalink)
| | Spanish Shawl Nudibranch
Join Date: May 2005 Location: Pgh. Pa. Age: 50
Posts: 84
Karma: 24
|  Welcome
Hi VibeAUS and welcome to the best cheap advice you can get!!  :
Great advice from all so far. Turnover is important in a reef tank, but you did not mention whether you were going "reef" or fish only. Fish are not nearly so fussy, sensitive nor delicate.
I can only add that you will find many non-fish reef animals (corals, inverts) finicky about flow. So if you use these comments as a starting point, you will then have to watch your animal additions to ascertain whether they are fussing over your placement! Know your tank, read up on them before purchasing, place accordingly, then adjust.
Happy reefing!!  _________ Glass 90 and 110, skimmer in both 30 gal. sumps, 1150 GPH, plus a 75 gal fuge!! Yellow tang, several damsels, 2 lg flower anems, brown & rose BTA's (8" dia.) with 3 perculas, 5 ricordia, dozens shrooms, dozens of yellow, brown and green polyps, lots of snails, hermits, bugs and 3 inch worms. Mangroves, caulerpa, LR, LS, pics coming  | |
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12-18-2005, 07:08 PM
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#6 (permalink)
| | Plankton
Join Date: Apr 2005 Location: Reno. NV Age: 42
Posts: 24
Karma: 8
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Hey Vibe another option is to feed your fish with the heads on for a moment and that will give you a good visual on how your tank is moving water around. I have tried it and gives you a good plans as to where to adjust your flow.
_________
Make a habit of two things: to help; or at least to do no harm. Hippocrates | |
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