I am new to this forum and just starting a nano tank. I purchased some live rock and there is something growing on it. Does anyone know what it is? As I am sitting here it is changing. I just saw some stringy stuff coming from the middle of it with a pink dot on the stringy stuff. I hope it is not bad. It is green, pink and brown and glows green in the dark with blue lights on. Any help would be great. Hope I posted the photos properly (1st photo is how it normally looks 2nd photo is what it just changed to. Thanks.
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