problems with GSP

[beachsidereefer]

Hi All,

I'm having issues with GSP growing on a large rock that would be very difficult to remove from the tank. Because of the type of rock, it's really hard to scrape off the GSP so I'm researching other methods to kill or remove it.

Looking for suggestions from the folks on the forum and I was wondering has anyone ever tried using a laser and burning it off?

https://www.coollaserpointers.com/b...-pointer-best-5w-laser-for-burning-stuff.html

 

[alton]

Redsea NOPOX, I killed mine in a 65 unintentionally

 

[beachsidereefer]

Redsea NOPOX, I killed mine in a 65 unintentionally

thanks, are you talking about this stuff? https://www.bulkreefsupply.com/red-...RO9XloLu-5yQnB2szIkMShxFTkZaYd2BoCX1EQAvD_BwE

did you simply follow the directions or did you do an extra high dose?