I did read the link posted.......very informative. Back when I started
my FOWLR setup, I put most of the live rock and base rock on the bottom
glass. I then put in the fine sand sold at my LFS to a depth of about
2 inches around the rock (not under it). At this point, I would say a
little over 1/2 of the bottom area of my tank is LR and the rest is
about a 2" sand bed.

Because of all the rock in there, do I still have enough area for sand
to create an good DSB? Should I start over or just add another 2" of
new sand to what is already there?

Thanks again.




CapFusion wrote:
wrote in message
oups.com...
Thanks for the definition. I feel better now.

One more question........

If I convert my 220 gallon FOWLR tank to a reef tank, I know I
should
have 350 or 400 pounds of LR. I have maybe 25% of that now. But
I'm
not so sure about the DSB. Do I put the 4-6 inches in the main
tank,
or in a separate tank/sump? If the answer is a separate tank/sump,
what do the dimensions of that tank need to be to handle such a
large
tank?

Thanks again for the help.


You can have DSB anywhere [main tank / sump / refugium or combination
of
all]. The more area of DSB you have the more BIOS-load your system
can
handle. You should put in the minium like 4" should be good.
Since you indicate you have 250G, that will be good area.

CapFusion,...

wrote in message ups.com...
Because of all the rock in there, do I still have enough area for sand
to create an good DSB? Should I start over or just add another 2" of
new sand to what is already there?

Adding new sand to already setup tank is tricky...
Water will be mess for couple days and it could smother corals.
When I built my DSB the water was milky white for almost a week.

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

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?