Is Kno3 right for me?

[mrtint]

I am considering dosing KNO3 potassium Nitrate. After reading everything from 2006 to current......I just managed to confuse my self more. I also seem to think this is not a common practice anyway?
Main reason I would like to try is because I would like to get more color and polyp extension from my SPS. Most look good but none of them are near the colors when purchased. The biggest change is a lot of the lighter color bases end up brown but the tips all grow with good color.

Not sure what you will need to help or advise on this but I will start with tank stats

ALK 8.0 Hanna test kit
CA 480 Hanna test kit
MG 1350 Salifert
PO4 0 Hanna ULR
NO3 0 Salifert

Dosing
20ml Acro Power daily
8mil RedSea No3-Po4x daily
.550 m/l hr from Calcfeeder

225g Tank (200g total water volume)
100g sump
Pacific Sun Pandora Hyperion S LED/T5 combo (main tank)
Radion xr30pro (sump for frags)
Kore 5th doser
Tunze skimmer
Apex controler (all bells and whistles including PAR monitor)
Carbon reactor

Things that might help
-little coralline algae growth (mainly back wall and powerheads)
-light cyno growth on sand bed (red and green algae only on sand)

Things I have tried
-cutting back and stopping redsea No3-Po4x dosing (result was a ton of red algae on sand and rocks) had to restart to correct problem
-cutting back skimming (went from 24hr to 12hr a day)
-increased live stock (no change)
-increased feedings (little change)

My best result so far is I sent water into Triton Labs for testing. Came back a little low on Iodine (since corrected) but really low on (K) Potassium. Dosed 170ml over 5 days that was recommended and SPS seam to love it but not sure if This is consumed or just lacking in my salt mix. I have since switched to Tropic Marin Pro as suggested.

my lighting cycle is 11hrs but that includes a 1.5hr sunrise and sunset and T5's are on for 6hrs.
I recently had my transformer burn out, so T5's didnt come on.....I didnt notice this for about a week......browns in SPS got really brown. Its been corrected now.

If I get a ALK swing above 8.5 based of SPS will start to bleach.

A lot of information but after all the reading it seams this is the information most people were looking for.

One concern I had is if I dose KNO3 do I stop the No3-Po4x? seem counter productive.
Here is product I got to dose

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[bertoni]

My first guess would be that the lighting is causing the color changes, but if you want to try nitrate dosing, I would suggest using food-grade sodium nitrate, which is or was available on Amazon. The only reason to continue with the NO3O4x is if you think you need phosphate control, and don't want to use GFO.

For the potassium, I would dose a potassium supplement, and not tie it to the nitrate dosing. I'm not sure that I trust the Triton numbers. They have been fairly far off in some cases, but your results seem fine. I would invest in a potassium test kit. The Salifert has gotten good reviews, and the Red Sea seems to be okay, too.