I don't have any corals in the tank now, so if I add another 2" of sand
(for a total of 4") the only thing that will get covered up is the
bottom 2" of LR that is visible now. Should I add the 2" on top and
then try to mix it in with the existing sand?

I'm just worried that I won't have much of an area for the DSB as less
than half of the tank bottom is sand, the rest is LR.

I could also put 4" of sand in the bottom of my sump. It is about 12"
X 21" and will hold sand after I remove the bio balls. If I do that,
will the sum need to be lighted?

Thanks again.

phflyer21 wrote:
Deep Dand Bed (over 4")....
wrote in message
oups.com...
Forgive a newbie question, but what does DSB mean?