In a 10 gal
tank a DSB
is probably impossible. By definition, a DSB
is "DEEP" to provide an oxygen free environment for anaerobic bacteria. For normal sand, thats about 6"+. For mud, you'll still need about 3". What you get out of that is a BIT of nitrate control. A ball of chaeto on the other hand will not only consume nitrates, it will spur the pod population you want.
In my fuge, I have a wall of rubble right before my baffle to the return section. The purpose, in addition to housing BB and pods
, is to stop any wayward chaeto strings from migrating to the return section. Works like a charm, and if you have room in your fuge section, I would do that. But, chaeto is most important IMO
for nitrate control.