SPS Turning White from Top (Tips) down

0.31 po4 is not way too high. I keep my po4 0.15-0.30 as well, and I’ve never checked ph. I bet it’s just too close to you gyre. Try moving it before you mess with your chemistry.

.30 po4 not to be confused with .03, right ?
This is what you’re running in your acro tank? Do you get any growth?
 
.30 po4 not to be confused with .03, right ?
This is what you’re running in your acro tank? Do you get any growth?
Correct. 0.15-0.30 and yes I do get good growth and color.
I had nothing but death chasing low nutrients. As soon as I stopped worrying about them my acros started surviving and then thriving
 
Correct. 0.15-0.30 and yes I do get good growth and color.
I had nothing but death chasing low nutrients. As soon as I stopped worrying about them my acros started surviving and then thriving

Real nice growth!
What are your parameters?
 
As of Sunday
Alk 8.2
Cal 450
Mag ?
Ph ?
No3 25
Po4 0.21
K 380
 
Refreshing thread , having similar issues with a few sps. I notice as the lights get brighter in the morning, simultaneously 3-4 of the sps start emitting a milky wisp. Lighter to white tip.
Running 4 hydra 26 in a 5 ft tank, 4 t5 . Have not done a parr test. Doing the brs ab setting. Lights 9” above water. Sps in question about 12-14” below water line.
Recently I discovered a bad calcium test kit was an issue. Was testing at 340. Am making adjustments to raise.

1.025 salt
8.5 Kh
5-10 ppm no3
.04 - .06 po4
8.60. Ph ( if it matters )

my problem is I’m hand dosing everything right now. Kent superbuff / esv 2 part. Kent essential elements . Red Sea nutrition 2 part, reef roofs.
Running carbon in sock
Open for suggestions
 
Last edited:
I recently started another thread, about testing to / di . Will update it soon . Replaced ro membranes to solve that problem.
 

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