I dipped this plug in Brightwell's CoralMD before I added to my tank because it didn't look great... now these things are sprouting up all over it and looking like they're trying to jump to the little rock this is isolated on. Pretty sure these are some type of colonial hydroid but would love a second or third opinion to confirm. Wondering at this point what I can do to rid these of the frag and prevent them from spreading further, they're all up in on these cloves which I'm sure is irritating it.
