It should better if all of those you meantion apply.
LR / LS / DSB
Addition PS / Sump / Refugium

CapFusion,...


"Don Geddis" wrote in message
...
" wrote on 16 Feb 2005 07:1:
Forgive a newbie question, but what does DSB mean?

"Deep Sand Bed".

A bottom layer of sand on the tank, at least 4-6" deep. Provides a
substrate
for both aerobic and also anaerobic bacteria, which then help process the
nitrate cycle in your sal****er tank (which itself begins with ammonia
from
fish waste).

A popular modern method of waste filtration in reef tanks is "live rock",
"live sand" = DSB, and a protein skimmer as the only mechanical
filtration.
No wet/dry, no undergravel filter, etc.

-- Don
__________________________________________________ _____________________________
Don Geddis
http://reef.geddis.org/
Of all the causes of astronaut insanity, getting a fly caught inside your
space
helmet is probably in the top three.
-- Deep Thoughts, by Jack Handey [1999]