jthread wrote:
Some of you had recommended a dsb for lowering nitrates and i said the lfs
told me not to. I said something about nitrogen bubbles and... well i'm a
nubee and was basically talkin' out my bottom and this is what the lfs said.

Paraphrase: They only recommend 1" of a sand bed "on small tanks" due lack
of real-estate. He didn't say anything about borrowing animal releasing the
bubbles he said the borrowing animals "rasps" could expose the anaerobic
bacteria and cause the ammonia to spike in a dsb. He did say something about
nitrogen bubbles but i don't remember the context.

I'm learning. Sorry for the confusion

I'm considering a dsb in my 45 gal tall tank as it has room. How many inches
do you suggest?

Jim



Can I make one suggestion, having read a lot of your recent posts, and
that is maybe go and invest in a book - a really good one is "Natural
Reef Aquariums" by John H. Tullock - others might suggest other reads
but I have used this as a basis for my reef tank research and then
supplemented any questions I have with newsgroups such as this or
dedicated reef forums.

Gill