No Alkalinity Change

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rq786

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Hi,
The problem I am having is I have almost zero coral growth and no alkalinity change
9/22 9.0 Alk
9/23 8.8 Alk(Hanna) 0.046ppm PO4 (hanna) Less than 4ppm NO3 (red sea on high no3 test)
9/24 8.8 Alk
9/25 8.8 Alk
9/26 8.8 Alk
I think this is being caused by two things low nutrient and low lights, but I do have very little red slime algae on the rocks and my lights are 45% intensity for 11 hrs photoperiod
I have 7 sps frags, 3 lps frags, 1 leather, 3 zoas frag Most frags are 1-2 months but zoas and leather are very old.
feed my fish every other day with nori, misis shrimp, lrs frozen
I of the my monti which was all the way on the top of the rocks showed some growth as it was 5in below the water was getting direct light from the kessil which was 5in above the water plus the radion which are 10in above the water
Tank info 1-year-old
50 gal cube
carib sea purple rock
1/2" sand
light radion gen 1 (45% intensity programmed it to go up to 60% in 4 weeks) and a kessil a80 100% intensity almost all blues used for shimmer
for filtration aquamaxx skimmer, filter floss, some kent carbon, seachem matrix, and sera ring
weekly 5-10 gals water change with neo marine salt I do vacuum my sand thoroughly
I hope I didn't miss anything, any suggestion or solution is appreciated
 
Yes same time every day around 10pm
Back on 7-26-19 I tested my alk it was around 6.16dkh after that slowly I brought it up to 8dkh using two part then started with Kalk 1/4tsp three time a week, since Sunday I haven't dosed anything
 
Sps look good showing good polyps extension this pic is when lights just came on
I will post Cal tonight

DB87D772-94CD-4245-A7E5-4EC6B5EF2692.jpeg
 
Yes same time every day around 10pm
Back on 7-26-19 I tested my alk it was around 6.16dkh after that slowly I brought it up to 8dkh using two part then started with Kalk 1/4tsp three time a week, since Sunday I haven't dosed anything

How are you adding calcium hydroxide? Are you still adding it? Do you use tap water?
 
How are you adding calcium hydroxide? Are you still adding it? Do you use tap water?
I have 1/2gal bottle converted into dripper use mrs wages pickling lime 1/4tsp mix it in RODI water for 30 secs then let it sit for a couple of hours then drip in the tank haven't dose it for a week now since Alk I barely had any Alk consumption
 
How long have the corals been in the tank?

Might be low nitrate. I’d try feeding more fir a bit and see what happens.

one thing I forgot to mention is that I have been dosing 5ml vinegar every day for the past month before that my NO3 were 14ppm but the reason I started to dose was I had some brown algae on the rocks and some green algae on the back glass but now its all gone
corals are 1-2 months old
I will start to feed every day to see what happens
 

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