Brown coating on rock

[PolandSpring]

i just noticd some brown coating on the rock. its not bad, but i'd rather have it gone. I just started feeding phytofeast and oysterfeast to my tank which is about the only thing i have changed since i noticed it. Could it be my phosphates or nitrates? i tested them about a week ago and they were very low, but that was before i began feeding. I also just bought a some more hermits and snails, What else can i do to get this algae away? Should i setup my TLF phosban reactor, will that help the algae?
here's a few picks.

(In the last picture, the rocks on the side have no algae andare not affected which is kind of strange)

 

[jerl77]

you dosing aa ?
when i over dose i get that

 

[PolandSpring]

you dosing aa ?
when i over dose i get that

nope not dosing AA

 

[THEDLO]

y is ur rock all white besides that? new upgrade?

 

[PolandSpring]

y is ur rock all white besides that? new upgrade?

yep, but its been about 3 months now, my calc is 440, i dont know why my purple coraline hast started to take off yet. Would you know why?

 

[THEDLO]

well IME when rock is "new" or it hasnt been exposed to direct light(this has happened when i move rock around), it gets a mini bloom all over it, after about a week or so, it goes away and other more favorable alga grow in place of. no CUC? im not sure if that s exactly what ur experiencing, ur sps seem to be growing so what ever it is it cant be all that bad.

 

[jerl77]

use some special blend it will take care of it man i love that stuff

 

[KathyC]

yep, but its been about 3 months now, my calc is 440, i dont know why my purple coraline hast started to take off yet. Would you know why?

What are your Alk & Magnesium levels?

 

[PolandSpring]

alk is at 8, and mag i think was a bit low,

So, the algae should just slowely go away?
Im gona put in some new carbon and set up my TLF phos. reactor and see what happens