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11-09-2006, 04:22 PM
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#1 (permalink)
| | Zoanthid
Join Date: Jul 2006 Location: ontario, canada
Posts: 1,117
Karma: 166
 |  flow
Can anyone give me the mathematical equasion to figure out the flow in my tank. I used to have 4 powerheads and the flow from my filter but it was way too much for a narrow tank. Everything was being blown too much! after this experience I can say that there can be too much flow in a tank so now I have 2 powerheads and the flow from my filter. I want to figure out the flow rate in my tank.
1 mj1200 = 295gph
1 mj400 = 110gph
filter = 200gph
total= 605 gph
Everything seems happier now that I have lowered the flow. _________ 20g
25lbs LR
1 hydor koralia
rio nano skimmer FISH: blk/white clown, damsel, yellow watchman goby CORAL: grn open brain, acan, torch, rics, toadstool, zoo's
INVERT:[/u] hermits, nassarius, astrea, turbo's, nerites, crocea clam
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11-09-2006, 04:33 PM
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#2 (permalink)
| | Spaghetti Worm
Join Date: Jan 2005 Location: montreal, QC,Quebec Age: 29
Posts: 192
Karma: 37
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You have a 11 x turnover (605 / 55 = 11). Which is very good. Recommended is 10 x. But then again it doesn't mean that less or more is bad either. it always depends on what your keeping in the tank. _________ 
20Gal high, 25 lbs LR, 65W PC 10 000K + 65w PC Actinic
Sixline wrasse
RBTA, Montipora digitata, Ricordea, Green star polyps, Button polyps, Zo's, Finger leather, Pulsing xenia, Mushrooms
Skunk cleaner shrimp,Hermits and snails
10 gal sump/fuge, 10 lbs LR, Caulerpa, Cheatomorpha, halimeda | |
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11-09-2006, 04:34 PM
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#3 (permalink)
| | Vlamingii Tang
Join Date: Mar 2004
Posts: 1,888
Karma: 425
 
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The recommended flow rate is 10 times the tank volume per hour. this includes power heads and return pumps.
so if you have a 55 gallon tank the recommended flow would be 550 gallons per hour | |
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11-09-2006, 04:50 PM
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#4 (permalink)
| | Vlamingii Tang
Join Date: Mar 2004
Posts: 1,888
Karma: 425
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My return pump is a Iwaki MD-100RLT pump with a 1986gph flow at 6 feet of head and with a 150 gallon tank my turn over is 13.24 times per hour | |
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11-09-2006, 05:27 PM
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#5 (permalink)
| | Zoanthid
Join Date: Jul 2006 Location: ontario, canada
Posts: 1,117
Karma: 166
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should I lower the flow. My xenia move around alot and they can't really pump? My tank is a very open concept so there isn't much blocking the flow. | |
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11-10-2006, 06:26 AM
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#6 (permalink)
| | Stylophora
Join Date: Aug 2004 Location: Montreal, QC,Quebec Age: 29
Posts: 999
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I wouldn't really lower the flow. I would move a powerhead or the xenia. Its a good thing to have a good turnover. Makes everybody in the tank happy plus it keeps crap in the water column so your filter or skimmer can pick it up.
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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11-10-2006, 07:05 AM
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#7 (permalink)
| | Zoanthid
Join Date: Jul 2006 Location: ontario, canada
Posts: 1,117
Karma: 166
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No matter where I put the xenia, they seem to move around. The only place where the flow seems low enough to keep them from blowing is under a bridge which wouldn't be a good idea since they wouldn't get any light. I love xenia but boy they are fussy! | |
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