Purple polyps

[Dearth]

So I found one of the rocks I have is growing a colony of purple polyps some people consider these a nuisance coral others enjoy its appealing looks and searching through this and other sites have not found a satisfactory answer so I have a couple of questions.

1) How fast does it spread?(given the amount of variables involved a round park gestimate will suffice)

2) Is there an effective means of controlling it if it reaches plague proportions?(Biological, chemical)

3) Can it smother or damage other corals?

[MrTreat]

what kind of polyps?
...if it's purple mushrooms, then it really depends on what you want to have in your tank. If you are looking to go heavy sps, i'd pull the rock out and let it dry out for a week! Mushrooms can kill sps AND they are almost impossible to kill.

[Dearth]

This one of the larger colonies on the rock

[Coralgurl]

I have similar stuff in my tank. I've learned to live with it. If you can get it out, then do it. I find it ugly as hell, impossible to pull off rocks, but can clean it off the sand. It will spread everywhere, tank sides, power heads, rocks and sand. No it doesn't irritate the corals, just ugly.

[don.ald]

Attachment 11851
They cover everything
Mine were slow to start, maybe years, then boom. Now they grow overnight.

[pinhead]

Purple Cloves. Watch out!

Search here on Canreef to see how to get rid of them.