The really nice looking metallic green is aggressive, the pale stuff no problems (at least with me).

My GSP is bumping up against some Zoas now and the Zoas are not happy about it.

Well that really sucks!!! I guess I have some thinking to do about it now...it looks like grass for crying out loud, never thought it would be nasty:wink: Thanks for the info.

I've applied some Joe's Juice and will update in the morning as to my progress.

GSP is like a weed, great started coral as you can pretty much put it through nuclear war in your tank and it will still live.
Getting rid of it is the hard part, you can try different injections etc, best way is never to get GSP in the first place:p:p

Since Option A was already exhausted as you probably have GSP in your tank and want to remove it, you can do it the old manual way with a few options:

- Remove all loose rock with GSP and boil/dip the GSP grown part, then let it cool and it basically peals off like skin on a chiken (Very brutal process and yes this will most likely kill anything else on the rocks)

- Use a sharp Scalpel/Cutting pliers and anything else you can find to scrape the nice purple film of GSP (usually it's impossible to get the whole thing and you'll notice is growing back from the smallest piece you missed of just could not get)

can some one help a rookie out and tell me what gsp stands for so i can look it up. sounds like i don't want any in my tank.!!!

Green Star Polyps

http://www.reefcorner.com/SpecimenSheets/greenstars.htm

So far I havn't seen any kind of polyp extension since using the joe's juice.
The purple film is still in tact and doesn't seem to of been affected.

I will update later if there is any polyp extension. Might have to try the freshwater dip idea.

It appears that gsp doesn't have any kind of stinging ability. The main problem with it is it's ability to grow like a weed and spread like crazy.

The article above talks about the posibility of gsp attaching itself to the rear glass of the aquarium. If it could be kept under control it would be quite the background.

Even with it being isolated, Sandbed/Glass GSP has a tendency to pro-create meaning it will grow little pieces(layers gsp growin on GSP) that fall off and get carried with the water current, without constant monitoring etc you're bound to have an GSP infestation.

^ This worries me a bit.

Since adding the Joe's Juice to a small area, the GSP hasn't extended any polyps.
The purple skin doesn't seem to of been affected or harmed at all. I added a second layer of JJ and am hoping to see some kind of progress in the next couple of days. I will update with any progress.