Brown stuff on Bali Enchinada

[KevK]

I've had a frag of Enchinada for abot 6 months and recently there is a brownish coating on parts of the coral. Other than that it looks fine.The coral is about 4 inches from a 175 xm halide and has plenty of curret. All the other acro's in the tank look fine and are growing.My parameters are as follows

Am, Nitrite nitrate 0
Ca++ 475
Alk 4.0 m/eq
pH 8.0
phospahte not tested, but no hair algea problem

I have tried to use a turkey baster to blow off the brown stuff without any luck. It looks like algea.

 

[Ray]

I had some on one and it eventually went away after a couple weeks, I think it was some algea caught on it and was in a position that the PH could not blow it off

 

[KevK]

Thanks, hopefully it will go away quickly

 

[Ray]

does it look kinda like red slime algea?

 

[KevK]

It looks like hair algea but it's brown