Please help me identify this

[MeanUrchin]

Hello please help me identify this on my GSP coral.

It doesn’t seem to bother my GSP too much as it still fully opens up during the day.

But it’s white and semi transparent. Looks to be firm and doesn’t move with the current. Web like appearance.

 

[LAReefer4Life]

Hard to tell under the blue light but looks like some kind of sponge...

 

[NonstopSoda]

Could be a sponge, pls send pics under white light

 

[MeanUrchin]

Could be a sponge, pls send pics under white light

 

[ISpeakForTheSeas]

Yeah, that's definitely a sponge - since the coral still opens, it's not a chemically harmful sponge:

Yeah, that's definitely a sponge. Most sponges are completely harmless/beneficial, but some can be invasive and/or harmful to corals (thankfully, these are rare).

To tell if a sponge is chemically harmful: if a healthy, established coral starts closing up or looking to be in bad shape on the side closest to the sponge as the sponge grows closer to it, and nothing else has happened (lighting changes, parameter swings, pests, etc.) that could explain it, then the sponge is probably chemically harmful.

Chemically harmful sponges are very rare.

For invasive sponges: unless it shows signs of being chemically harmful or starts actively growing over and smothering a coral's flesh/polyps, it's harmless. These can grow over the skeletons of corals, around the base/stalks of corals, even up into the water column above corals (where they're over the coral but not growing on the flesh or polyps themselves), etc. without harming the coral at all - as long as the coral flesh and polyps can get food, light, and flow, the sponge is harmless.

Invasive sponges are moderately rare.

Invasive and chemically harmful sponges are incredibly rare.

 

[vetteguy53081]

Hello please help me identify this on my GSP coral.

It doesn’t seem to bother my GSP too much as it still fully opens up during the day.

But it’s white and semi transparent. Looks to be firm and doesn’t move with the current. Web like appearance.

Clatharina sponge and can be invasive. Peel off and place in sump or discard.

 

[MeanUrchin]

Clatharina sponge and can be invasive. Peel off and place in sump or discard.

thank you this seems to be it