I looked through the FAQ but couldn't find this: squiggly pink stuff like silly string that looks rigid but when poked lightly seems to give a little. It started growing in my 20 gal. reef a few days after I upgraded my lighting and started adding Coral-Vital in an effort to cultivate some corraline. A little bunch will pop up and then disappear after a few days. I've tried to attach a pic but I'm not sure it worked). Any ideas? Thanks!