Black stuff on zoas? Anyone?

[prsnlty]

Does anyone know what this is? What caused it and how to treat it?

Thanks

 

[evolved]

Encrusting sponge. You may want to gently remove it; it could overgrow the zoas.

 

[prsnlty]

Thank you

 

[prsnlty]

What would you suggest I use to remove it?

 

[Browncoat]

I use a soft bristle toothbrush for that or ditritus occasionally.

 

[prsnlty]

Thank you

 

[cvysochin]

Not sure what your refering to. The black around the polyps? Those look like a "PE" type of polyps. If so then that looks like the mat they grow to colonize. Dont try to scrap that off or you might kill them.. HTH

 

[prsnlty]

The polyps that have this on them appear to be shrinking. This is why I am questioning it.

 

[rlman41299]

it could be the same stuff I posted on my of my threads here https://www.reef2reef.com/forums/zoa-discussion-club-zoa/165745-help-slowly-killing-my-zoa.html.
some reefers had good suggestions and the chemiclean worked for a while but eventually the polyps melted. So far I have not figured out a way to take care of it. :sad:

 

[PRomero]

Could be an algae or bacterial issue, it happens to my people eaters all the time, don't know why either.

 

[prsnlty]

I cave a single cats eye polyp in a small colony that has what you're describing on your thread. Plus took off a huge chunk fro my whammin watermelon colony. The ww's got better but I can't remove it from the single cats eye. This paly shown has something a little different from the other.