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**Fishfirst** · 08-14-2005, 08:56 PM

powerheads have a propeller in them, their significance is water surface agitation and water flow. Agitation = more surface area = more oxygen in your water, water flow = less chance for solids that may decompose on the sand/crushed coral = fewer nitrates (if you have a skimmer), and water flow = less algae because it is harder for them to attach to your glass with a lot of flow.

08-14-2005, 08:56 PM	#2
Fishfirst Fish Guru Join Date: Jan 2005 Location: Northern Wisconsin Age: 24 Posts: 3,536	powerheads have a propeller in them, their significance is water surface agitation and water flow. Agitation = more surface area = more oxygen in your water, water flow = less chance for solids that may decompose on the sand/crushed coral = fewer nitrates (if you have a skimmer), and water flow = less algae because it is harder for them to attach to your glass with a lot of flow. __________________ 210 Gal Reef w/ 55 Gallon Sump/Fuge, 125 Gal Fish Only, 65 Gal Seahorse-29 Gallon Sump, 55 Gal FOWLR, 54 Gal Corner FW Community, 20 Gal Nano FOWLR, 55 Gal Piranha, 29 gallon QT "All the yellow tangs and clownfish in the world can't save you now! hahahah" Peter from Family Guy