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04-01-2008, 07:59 AM
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#1 (permalink)
| | Spaghetti Worm
Join Date: Feb 2007 Location: Chicago, IL Age: 37
Posts: 180
Karma: 15
 |  water movement
Hey guys,
I was reading about water movement within a reef aquarium and it said that I should strive for turbulent water movement within my tank. They also said that the best way to do this is, is to get Oscillating powerheads. What i want to know is, how do you determine what strength,.. as far as gph,.. powerhead do you need to get that turbulent movement. I have a magdrive 1800 return pump, I split the return line so that water is pumped into the main tank on 2 sides. One line comes in by the corner over flow and the other from the back corner of my tank opposite the other. The mag drive pumps 1350 ghp into my tank, how much more movement do I require to get turbulent conditions in my tank. I realize position is key, but I don't want to buy a powerhead that's 2 strong.
I want to buy 2 of the following powerheads: Power Sweep
I plan to keep SPS, LPS, Clams and Inverts. Any suggestions and ideas are appreciated, thanks. _________ Perfecto 90 Gal with megaflow overflow, 110lbs LR(mixed), 130 lbs LS, Turboflotor 1000 multi, megaflow sump, magdrive 1800 ghp pump, lighting: 2x250 MH 14K, 4X54 T5's, Auto topoff system.  | 
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04-01-2008, 08:14 AM
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#2 (permalink)
| | Gnarly Old Codfish
Join Date: Sep 2003 Location: Silverdale, Washington Age: 58
Posts: 4,608
  
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Save yourself PH head problems...
Check out:
SCWD—Squid—Wavemaker
The SCWD (pronounced "squid") Wavemaker is a revolutionary device designed to provide alternating currents without the use of electricty. The SCWD mounts inline with 3/4" tubing, the two ports alternate the output, the bottom port is the input. A great alternative to expensive electronic ball valves. The SCWD will run on any pump with a minimum output of 50 GPH and a maximum output of 1400. The switching speed and current duration is dependent on the volume of water flowing through the SCWD. You can control the duration by controlling the flow going through the SCWD. Can be submersed for use with large power heads or used externally. Provides alternating current between two ports. connects to any pump up to 1400 GPH with 3/4" vinyl tubing.
Works great in my 125 gal. Can supplement with a small koralia PH to get at any low flow areas...
I have used for years. They do appear to wear out over time...My first lasted 5 years.
Can be modded to increase flow.
Love mine.
Scott _________ AG "125," AquaC EV 180, 30 gal sump, "SCWD", 80 lbs LR, CoralSeaLife "Moonlite" Hood, PFO 250W HQI Mini-Pendant (SPS HQI 14000k bulb)
12 Gallon NanoCube - 24w stock PC 50/50 light "...nothing good ever happens fast in a reef tank, only bad things happen fast..."
- MIKE PALLETTA - (2008 Reef log) ("OmarD"/"Scott") | |
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04-01-2008, 08:26 AM
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#3 (permalink)
| | Giant Squid
Join Date: Jan 2006 Location: Meriden, Connecticut Age: 43
Posts: 3,905
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The best way of determining what strength(gph) is by the numer and type of corals you have! Different types of coral require different water flow intensities! _________ 125gal.w/Mag9.5 return(dual megaflow)>Mag7 pump Aqua Cev180skimmer.Wave2k Hamilton Reefstar(2)250watthqi(mh)pend.a Yellow, Naso Tang Red Lip Blenny Percula Clown Demoiselles Niger Trigger F. Wrasses Ceriantharia Orn.Shrimp and Stars Hermits Queen Conch asst. snails> Stars Zoos shrooms Montipora Brains Gorgonians Favia Turbinaria(large+small polyp) Acropora Xenia Tridacna (CroceaMaximaSquamosa) Leathers <35+75gal.reef tank as well> 
"IF THE PHONE DOESN'T RING...IT'S ME"  jb  | |
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04-01-2008, 10:22 AM
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#4 (permalink)
| | Spaghetti Worm
Join Date: Feb 2008 Location: San Bruno, CA Age: 33
Posts: 185
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Quote:
Originally Posted by omard  Save yourself PH head problems...
Check out:
SCWD—Squid—Wavemaker
The SCWD (pronounced "squid") Wavemaker is a revolutionary device designed to provide alternating currents without the use of electricty. The SCWD mounts inline with 3/4" tubing, the two ports alternate the output, the bottom port is the input. A great alternative to expensive electronic ball valves. The SCWD will run on any pump with a minimum output of 50 GPH and a maximum output of 1400. The switching speed and current duration is dependent on the volume of water flowing through the SCWD. You can control the duration by controlling the flow going through the SCWD. Can be submersed for use with large power heads or used externally. Provides alternating current between two ports. connects to any pump up to 1400 GPH with 3/4" vinyl tubing.
Works great in my 125 gal. Can supplement with a small koralia PH to get at any low flow areas...
I have used for years. They do appear to wear out over time...My first lasted 5 years.
Can be modded to increase flow.
Love mine.
Scott | I'd love to crack one open and see the guts! Moving parts tho...
_________
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04-01-2008, 10:27 AM
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#5 (permalink)
| | Purple Spiny Lobster
Join Date: May 2006 Location: CT Age: 29
Posts: 486
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Omar: How did you mod yer SCWD?
_________
20 High (started 5/18/06)
20 lbs live rock and 3" sand bed - Remora w/ MJ1200 & Prefilter - 10 gallon sump/fuge - MAG7 & SCWD return - 65W 10,000K PC - 15W Actinic - Red-legged Hermits - Cerith Snails - Nassarius Snails - Royal Gramma - 6line Wrasse - Maroon Clown - Wheeler's Goby - Bubble-Tip Anemone - Green Star Polyp - Button Polyps - Frilly Brown Mushroom - Green Bullseye Mushroom - Kenya Tree Coral | |
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04-01-2008, 10:53 AM
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#6 (permalink)
| | Kole Tang
Join Date: Apr 2007 Location: joliet,il Age: 41
Posts: 1,759
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with sps alot of flow is required. a pressure washer type flow isnt recommended, but a firehose flow is.
_________
just one little sps frag tank with lots of goodies | |
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04-01-2008, 11:15 AM
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#7 (permalink)
| | Sea Dragon
Join Date: Nov 2007
Posts: 532
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Quote:
Originally Posted by omard Save yourself PH head problems...
Check out:
SCWD—Squid—Wavemaker
........
Can be modded to increase flow.
Love mine.
Scott | Okay not fair! "can be modded" and no details...
Can you explain this in a little more detail please? I was thinking about buying a couple of these but would like to push a little more water through them.
_________
I just got lost in thought. It was unfamiliar territory.--Unknown
Eagles may soar, but weasels don't get sucked into jet engines.--Unknown
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