Is my GSP dying?

Ebbott

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Just noticed this stuff slowly creeping on it. It's more white than it shows in the pic. Kinda looks like a fine filter pad.

PXL_20210517_214146942.jpg
 
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Ebbott

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Looks like a sponge, Not harmful. If it starts to grow on the mat you can use a toothbrush to clear
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)
 

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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 wouldn't dip.... follow what @ufdrew79 recommend. GSP is pretty much indestructible for most, although it doesn't thrive in my tank.
 
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It 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.
 
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Ebbott

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It 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.
I'll give it a brush tonight after three coral had gone to sleep
 
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Ebbott

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So I waited till all the corals were tucked in their beds, and then I struck!

It looks like the GSP grew over something, but i can't tell what. It's not crushed coral, it's almost like a hard foam, but there were other bits I cleared out as well.

Either way, it gone now (along with the small part of dead coral)
 

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