Brown string on montipora

[DerekB4]

My montipora (I think it’s a montipora) always seems to have a brown string coming coming off the same spot from the coral.

I’m battling cyano so I don’t know if it’s related.

My birdnest has it too. Is it a normal SPS thing?

 

[BostonReefer300]

that looks like dinos but hard to tell

 

[Wolvesreef]

se ven como Dino debajo de la roca también tienes