I didn't know it was a killer :(

[VP616]

No problem. Isolated island rock surrounded by sandy beaches is the best way to have this grass in our tank.

Agreed. Just make sure to really isolate the GSP rock away from anything you don't want it growing on. I made the mistake of having my "isolated" GSP rock too close to the main rockwork, touching at one point. You can guess what happened...

 

[nkyreef]

GSP can be controlled by scraping it off the rock and scrubbed with a tooth brush. You can win.

I'm about ready to do the same with some unruly GSP. Would scraping it off cause it to spread to other areas of the tank?

 

[William Duritsch]

I'm about ready to do the same with some unruly GSP. Would scraping it off cause it to spread to other areas of the tank?

It generally doesn't, at least I never had a problem with it showing up in other parts of the tank. The problem is that, unless the rock is really flat, it is hard to scrape it off in more than just 1 small piece at a time.

 

[Bruce Burnett]

You can cut or pull off sections of GSP. I knew it would do that so I have it isolated to two rocks in the corner of tank it covers most of the one corner overflow and as it tries to reach other areas I just cut it with scissors. I know people say they don't feed but when I was using Red Sea Reef Energy they would respond and grow like crazy. Stopped using and their growth slowed down.

 

[ncaldwell]

A slower option would to just cover the gsp with something light can't penetrate and it will close up and die out

 

[Leadfooted]

Are GSP toxic like some Zoas? I'll be making some putty shelfs to shield light but I'm still picking and scraping some of the polp's now. When I'm doing this, am I releasing toxins in the water that I need to be extra cautious with?

 

[saltyfilmfolks]

Are GSP toxic like some Zoas? I'll be making some putty shelfs to shield light but I'm still picking and scraping some of the polp's now. When I'm doing this, am I releasing toxins in the water that I need to be extra cautious with?

no, there's no play toxin or similar that I know of. That said I wouldn't kill a large amount of anything in the tank. .

 

[Leadfooted]

Good to hear @saltyfilmfolks and agreed. Thanks

 

[saltyfilmfolks]

Good to hear @saltyfilmfolks and agreed. Thanks

Your Welcome
Happy Killing!;Bucktooth

 

[spiraling]

Are GSP toxic like some Zoas? I'll be making some putty shelfs to shield light but I'm still picking and scraping some of the polp's now. When I'm doing this, am I releasing toxins in the water that I need to be extra cautious with?

You might consider adding some fresh carbon for the other corals in case it releases chemicals into the water. Ive lost a duncan and an acan because they fell off their rock and into the gsp. I retrieved them a few hours later, but they died in a few days time from the GSP sting.

 

[Leadfooted]

UPDATE:

I've been a little too busy and a little too lazy from being too busy to mess with moving the Lepto's away from the approaching Star Polyp. So it appears Round 1 and 2 of this battle went to the Star polyps. Now it appears that the Jack'o Lantern and Toxic lepto have had enough and they're putting up a fight of their own. There's been no more signs of tissue death around the lepto's and also the star polyp growth seems to be retracting from this direction. For the moment, it's a draw....
Check out the Jack'o defense!