Green Star Polyps spreading without contact?

[Danny]

As above, they can be a pain. I use boiling water through a feeding tube to keep them away from my suns and other corals. This works well. Knowing what I know now I would not have placed them in my tank. To answer your question, I have not seen them anywhere else in my tank .

[Dez]

Thanks for all the response, I will gather that it is fairly safe as long as my little rock is isolated and I keep watch.

Any others with the safely of zoo's on it's own little island rock on the substrate? Thanks again everyone.

[Bugsy]

I too love the GSP they add that punch of nice color in the tank for sure.

I have mine on a small rock, I constantly trim this rock. I have been lax these few weeks and have noticed that without trimming they are spreading on the sand bed now. They are easy to trim like this but if you only want them on one rock make sure they donot touch any other rock or they will spread there.

Good Luck
Bugsy....

[Delphinus]

I have a mobile colony of GSP in my 40g tank (on a point of interest, incidentally you made this tank ). No really, the colony moves all over the place. It's not the fastest thing in the world, it's about equivalent in speed to, say, a blue tuxedo urchin. Whom, incidentally, I haven't seen since I noticed the mobile GSP colony. Weird coincidence huh!!!!

The funniest thing is it's been this way (the urchin wearing the GSP colony) for like SIX MONTHS NOW. It amazes me the urchin doesn't let it go, ever, and in fact the GSP are growing like crazy ("fat dumb and happy" is I think the expression they would use in Texas to describe this).