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Will it take over the gsp? Will a dip remove?Looks like a sponge, Not harmful. If it starts to grow on the mat you can use a toothbrush to clear
I wouldn't dip.... follow what @ufdrew79 recommend. GSP is pretty much indestructible for most, although it doesn't thrive in my tank.Will it take over the gsp? Will a dip remove?
Am I over reacting?
I should note that this is growing close to a part of the gsp that has receded (tendril on the left)
I'll give it a brush tonight after three coral had gone to sleepIt is a suffocating sponge left un-checked. It will cover zoas and other polyps. I would get the rock out and brush off with toothbrush. May need to do this a few times. Sponge is great, but sometimes you have to trim it back like the corals.