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Luwe2008
04/16/2012, 08:57 PM
Okay, so my reef has been all dandy until now. And I cant figure out what it is.
So recently my SPS have been browning out, my LPS have been receding skin and I dont know what was causing it.

First I checked my CA and ALK. CA 484 and ALK is at 9.016. So I figured it couldn't be that. Next I checked my salinity, 1.025. So I felt like it wasn't that. I never really have checked my phosphates because I've always kept my water pretty clean. I change about 25 gallons every 2 weeks and I have a 200 gallon tank. So I went out yesterday and bought a phosphate checker and its reading at 0.01. So I have no clue what it is??? My T5 light bulbs are about 3 months old so I doubt it could be them.

But again, if you can think of anything please let me know, Thanks!

CA 484
Alk 9.016
Phos 0.01
Salinity 1.025
Temp 78

tkeracer619
04/16/2012, 08:59 PM
Have you made any additions lately?

Have you checked for predators?

Luwe2008
04/16/2012, 09:29 PM
No I havent made any recent additions. I usually quarantine and dip anything new coming in.

tkeracer619
04/16/2012, 09:56 PM
How old are your ro filters?

Luwe2008
04/16/2012, 10:44 PM
They are now about 1 month old

Luwe2008
04/16/2012, 10:46 PM
Im thinking maybe nitrates?