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dissolved oxygen
Posted: Fri Jan 20, 2012 3:44 pm
by thenewpufferintown
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.
Re: dissolved oxygen
Posted: Fri Jan 20, 2012 3:46 pm
by J-P
aim the powerhead towards the surface.
Re: dissolved oxygen
Posted: Fri Jan 20, 2012 3:47 pm
by thenewpufferintown
i thought powerheads were supposed to be aimed at the rock?
Re: dissolved oxygen
Posted: Fri Jan 20, 2012 3:50 pm
by sorgan
by aiming it at the surface you will get gas exchange, TBH all you need is the surface to ripple. do you not skim?
Re: dissolved oxygen
Posted: Fri Jan 20, 2012 3:51 pm
by J-P
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.