Need some help with my Milli

[SaguaroSteve]

FTS so you can get an idea of the tank

and a macro, this was at one time a bright green milli, with long long polyps...

It's at the very top of my tank, and it still has some polyps extended, but only a few and they're almost translucent. As with my other SPS their color is a bit faded. My current parameters are
PH-8
NO2-0
NO3-0
PO4-0
KH-7
Ca-400
Mag-900

I know my Ca and Mag are "low" but I didn't think it'd have that big of an effect on the milli.
I also feed the coral Phytofeast, and Coral Smoothie.....
I seem to have this problem with all my SPS where they seem to be doing fine for some time then crash, then they return to almost full health with the exception of original color.

I'm running the Rapid LED 24 LED Dimmable Retrofit kit for the BC29 (12 blue/11 white, lost one while soldering lol)

So I'm wondering if it's my lights again......the Blues are currently at 75%ish and the Whites 40%ish.....any ideas? =/

 

[napsterMS]

Raise your kh! Go up to 9 and mag 1300. Ca could be higher but it wouldn't matter. Hope this helps best of luck

 

[SaguaroSteve]

Raise your kh! Go up to 9 and mag 1300. Ca could be higher but it wouldn't matter. Hope this helps best of luck

Thanks for the quick response! I'm switching to Coral Pro Salt from Red Sea next week (got sick of lugging buckets from my LFS and currently waiting on the booster pump power supply), and that should help as well as dosing.

In the meantime I've done a 15% water change so I'm going to test again then dose per instructions again tonight!

 

[SaguaroSteve]

Bump for some more help....
I've got my water on par with the Red Sea Coral Pro Salt Mix:
PH-8
NO2-0
NO3-0
PO4-0
KH-12.2
Ca-450
Mag-1340

and the Milli is furthering it's STN.....the only thing I can think of now is it's gotta be the lighting, I'm wondering if maybe optics will be necessary to prevent spotlighting?....
FWIW, it'll occasionally stick out a few polyps, and they're translucent....

 

[Gumma 1]

You went from 7-12dkh in six days,that will cause problems.Try keeping everything stable.

 

[Jeremy Blaze]

Yes, as stated, make small slow changes.

What fish do you have? I see a Lubbocks Wrasse, what else?

 

[SaguaroSteve]

You went from 7-12dkh in six days,that will cause problems.Try keeping everything stable.

It was my intention to take it slow, but I guess the water changes worked a little faster than I intended:uhoh3:

Yes, as stated, make small slow changes.

What fish do you have? I see a Lubbocks Wrasse, what else?

Tail Spot Blenny, Two Ocell. Clowns, Wheeler's Shrimp Goby....Inverts Tuxedo Urchin, Two Hermits, and a Pistol......

FWIW, the milli looked dreadful for 2+ weeks prior to the bump in KH.....

 

[Jeremy Blaze]

WAtch that blenny, very likely it's nipping the coral.

 

[SaguaroSteve]

WAtch that blenny, very likely it's nipping the coral.

I have seen him nip SPS here and there, but I watch the tank religiously and I've never seen him do it more than once, if at all, in a sitting, definitely something I'll be watching closer over the next few days/weeks.