sammydee
Fishaholic
DSB = deep sand bed.
It is a sand bed that is 3-4 inches deep or thereabouts and has anaerobic areas underneath it which process nitrates into nitrogen gas. Some say they look ugly in your main tank, so to have a DSB in a sump means nobody can see it.
It is a sand bed that is 3-4 inches deep or thereabouts and has anaerobic areas underneath it which process nitrates into nitrogen gas. Some say they look ugly in your main tank, so to have a DSB in a sump means nobody can see it.