acropora problem/got chew/pest/need help

[dragonblood]

Hi..I'm notice that my acropora seem just like getting chew in tip and my questions is ...Is this a pest problem or something else and if pest...what kind of them and how to cure it..thanks again


Thanks guy...I got it ..that the water problem..nitrate a little high (case is closed)

 

[mcnuggget]

what else is in the tank? what are your par, or at least how about providing a pic.
Please help us to help you.

 

[Dace]

need pics, list fish and inverts in the tank

 

[seascape]

+1 on the above cant figure out a problem if we dont know where to start.