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Old 08-01-2006, 12:26 AM   #1
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uv sterilizer size question

i have been thinking of a UV to prevent parisites

I would like to hook it up to my Fuval 405 (aprox 340 gal/hr with pads, carbon, and bio-cylinders as recomended)

im thinking 36-40 watts??? or will a 24 watt work?

100gal, i could add another powerhead for flow but i dont really want any more equip in the tank (no sump).

any ideas?

thanks
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Old 08-01-2006, 12:33 AM   #2
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Wow why too strong? The 9W Coralife Turbo Twist is rated to up to 125G 0.o
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Old 08-01-2006, 12:57 AM   #3
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http://www.drsfostersmith.com/pic/ar...id=423&aid=440[url]

according to the drs, with a flow rate of 300gal/hr in my canister then i would need a 40watt UV.

but it does say for 100gal 18watt at 100 gal/hr. but i have 300
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Old 08-01-2006, 10:28 AM   #4
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I'm thinking a smaller pump and slower flow is gonna be better. Shooting water thru them things too fast would only stun the target organisms. You wanna kill'm IMO.

Check the flow rated for the 15w and match a pump to it. Otherwise (even thought some don't), I'd put a flow regulator on the output side of what you're thinking about using to slow that flow down. Of course the 40w would handle a faster flow, but I'm not feeling it I guess.

Not sure, but that seems too fast.
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Old 08-01-2006, 12:28 PM   #5
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My 18W Jebo (cheap, yeah, I know) really restricts flow on its own - so what would normally be around 250GPH from my return pump (according to a 4' head height) I'm guessing is dropping me down to around 150GPH.

If you're at 300 now, you might find yourself much lower after adding the UV if it restricts flow much at all.

They have cheap flow measuring gadgets at marinedepot.com.
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AquaC EV-180 skimmer
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Old 08-01-2006, 07:11 PM   #6
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Never go by what a manufacturer rates their product for. I wouldn't get less than a 25W for 100-125g gal tanks. And definatly don't put more than 150 gph through it no matter how many watts it is, your just wasting electricity if the water flows through too fast because you won't be killing what u want to.

Current makes good sterilizers and the Coralife TT aren't bad either.
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Old 08-01-2006, 07:18 PM   #7
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I mispoke. Mine is a 36W Jebo.

Still serious overkill for a 75g tank, running about 150GPH.

Haven't had a single parasite or algae bloom since using it. I used to get cloudy water for days after a PWC.
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180G build thread

180G All-glass with dual megaflows in a custom stand
AquaC EV-180 skimmer
250 pounds LR
160 pounds aragonite
Custom acrylic sump from GlassCages.com
2xPCX-40 return pumps
2x250MH 14K, 2x175MH 14K - PFO lighting, 2x65W PC
No-name 36W UV
Water General 125GPH RO/DI
Filstar XP3
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