here is a current situation we have ...

[lReef lKeeper]

we (and when i say we, i mean I. cuz her tank has none), have an algae outbreak. thing is ... its only on the sand !! i currently am running a seio 1500, mag 7 from the sump (3 outlets in the tank) and 4 powerheads (ranging from 660 to 1150). what can i do to get rid of this stuff ?? BTW ... i am now using RO water for top off and water changes. oh, and i have a phosphate remover in place. here are the pics of the algae ...

Attachment 2365

[Jeremy Blaze]

How long has the tank been running?

Those are brown diatoms, which generally show up in the first month of so of a tank being setup.

With the use of RO, they should dissappear in about 2 weeks.

[lReef lKeeper]

this tank has been up for about 1 month, using everything from the old tank. but adding more LS and LR and about 75 gallons of new water to the 55 gallons of old water. this stuff is driving me crazy.

[Jeremy Blaze]

Just as I suspected. Wait about 2 weeks and it will go away. No worries.

[jojo22]

I agree with Jeremy. I got them bad when I first started up. If there are no corals in the tank yet you could severly shorten the photo period and that would help ( I THINK???????)

[lReef lKeeper]

come on now jojo, you know this tank is already stocked !! i just can't help myself !!