My First SPS Venture - Mildly Miffed Monti

nate's reef

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10 gallon tank
165 watt LED that is 10-20kk
1.5 hours of 55% blue light; 9 hours 60% white w/ 55% blue; 1.5 hours blue
run 40-50x tank flow with opposing power heads (cheap no name), one powering down at night to further alternate flow.
I feed 1-2x weekly, more 2x now that my other soft corals are exploding.
1 fish, 1 shrimp, 4 hermits, 4 snails
30 gallon skimmer
Chemipure blue
Formerly ran GFO, now do not after reading more about phosphates
RODI top offs and reef crystals

Salinity: .25
Phosphate: 0 for now
Nitrates: 0 from API liquid
Calcium: ~450
DKH: 7 - seems low


This is my first SPS, although I have been keeping star polyps, zoanthids, and gsp in my 10 gallon tank. When I got my monti he had a bleached spot in the middle, which I just assumed was related to the tank full of LPS he was in and got stung. I added him to the bottom of my tank and he polyped out pretty well but not great, the bleached spot had some polyps. Left for 2 days and there were fewer polyps on the white spot. Moved to upper 4" of tank and took a pic after a day(today) and removed GFO after consideration.

I think he looks better, but why would adding more light help bleaching? My thought was he wasn't getting enough (I have a full screen top between him and the light) and couldn't recover from his stress. I also removed my GFO now that I will be stepping up my water changes anyway. I read this may be common with GFO, but I understand it effects how they build, not survive, and this symptom often shows up after years in a tank, not days. The middle right piece that has actually filled in a little is where it started, and the rest of it showed up a couple days after arrival although the polyps were not out on them. Are the polyps promising, or indifferent? Is there anything else I can do to help it? Is this normal for acclimation or is it unusually angry at me? No sign of nudis anywhere.
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It looks happy, just keep an eye on PE. If it loses PE then I'd be concerned.
 
It looks happy, just keep an eye on PE. If it loses PE then I'd be concerned.
How long until I should expect him to make a full recovery, and when should I start to intervene (interfere)? Anything besides pe and color to watch? I want to see my first sps thriving
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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