green algae and monti cap color loss

[MikeD5]

I have been getting a lot of algae, don't know what type.. also do not know why my monti frags are losing color.
reefer 170 with reefled90 at 55 watts currently at 15kelvin
5 gallon water change every week
water quality
using brs 5 stage rodi with redsea blue bucket at 1.026
alk 9.2 with hanna dose all 7 times per day
cal 430
mag 1320
nitrate is undetectable
PO4 is reading 0 with hanna
salt currently 34.3
ph swing 24 hrs is 8.26-8.39 currently is at 8.25
temp is 77.2 degrees
Any thoughts to why I'm getting this algae I can't get rid of or the color loss(bleaching)?

feed missis, reef frenzy and reef chili every other day

 

[Coralreefer1]

Your getting the algae due to lighting and elevated phosphates and nitrates in your water. If all of your other corals are doing well, try moving your Montipora to a different location within your tank and play around with the water flow and lighting intensity.

 

[Subsea]

Your getting the algae due to lighting and elevated phosphates and nitrates in your water. If all of your other corals are doing well, try moving your Montipora to a different location within your tank and play around with the water flow and lighting intensity.

Did you read his post saying 0 nitrate & phosphate?

 

[Subsea]

I suggest feeding your tank more.

 

[vetteguy53081]

Decrease white and increase blue, moderate to semi strong water flow and bring salt up to 35.5pt
Vibrant liquid will help reduce some of that algae as would a lawnmower blenny and turbo snails

 

[LesPoissons]

You are starving the corals. Increase phos to 0.05 and nitrate to 5-10. Manually remove algae. Decrease whites and increase blues. What do you have for a cuc?