OK so I had put some live rock into a holding tank I was going to use as a frag tank. The rock got fairly infested with hydroids. Luckily it never made it into my DT. The rock was completely covered in Carline and I attempted to torture method. The areas that I torched have turned a neon pink under the blues. Has anyone done this before? is that normal? I would like to eventually move them to my DT. Lemme know thanks!