RReadabout "nuking" the rock with chlorine and muriatic acid. It worked great for me on the rock work from toms tank. I am 6 months in and no phosphates per my colorimeter.
I think I posted the info in my build thread.
QUOTE=Dragonvale;22041229]Thanks everyone.
Robert, the pictures posted were when I first got the tank (beginning of this year).
The tank is not custom but bought from a company from SoCal.
Colin, for some reason I'm starting to sway back to sticks. I'm pretty disappointed in being successful in growing zoas/palys to the colony melting or the colony melting after fragging. Or even yet, buying that zoas 3 times to have it melt every time. LOL
For flow I have still two MP40's from the 250. I may just use one and dial it down to 1000GPH hope that's not too much just from one pump. I also have a new WP25 which I can try out also.
The only concern is the dead rock that I have and leaching phosphates in the future when the tank is up and running. I guess there is no 100% way to be sure besides cycling it for many many many months. If anyone has a 3-4 week process I'm all ears.[/QUOTE]