I have a DSB which is separate from my main tank and fed from my sump, the DSB is 5ft x 3ft and 14" high. The depth of the sand is about 4" ( http://www.elliottd.fslife.co.uk ) As this is my first DSB I have a couple of questions. Should I have a powerhead in the tank for circulation ? and and is it desirable to oxygenate the surface layer of the DSB .
Cheers
Duncan



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I don't believe you need to do anything to your DSB tank. The water is being plenty oxygenated by the movement of the water from the main tank to the sump. I see no reason to add water movement to the DSB tank. Looks like you have a great working set-up as is.

it looks amazing! cannot wait to see what it looks like with some fish n stuff in it,if only i had the room

