dissolved oxygen

thenewpufferintown · Post by **thenewpufferintown** » Fri Jan 20, 2012 3:44 pm

without using a HOB power filter, is there anything necessary to oxygenate the water in a small sw tank? It has live rock and a powerhead for circulation, but without an airstone or hob filter, there is no surface agitation.

J-P · Post by **J-P** » Fri Jan 20, 2012 3:46 pm

aim the powerhead towards the surface.

thenewpufferintown · Post by **thenewpufferintown** » Fri Jan 20, 2012 3:47 pm

i thought powerheads were supposed to be aimed at the rock?

sorgan · Post by **sorgan** » Fri Jan 20, 2012 3:50 pm

by aiming it at the surface you will get gas exchange, TBH all you need is the surface to ripple. do you not skim?

J-P · Post by **J-P** » Fri Jan 20, 2012 3:51 pm

surface agitation is #1 without a skimmer. The flow will redirect and create a current around the rock. Add something near the rock and in back to test the dead spots. Find those spots and re position the powerhead but with keeping surface agitation.

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dissolved oxygen

dissolved oxygen

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