What is this?

[fishcare]

What is this at the base of this plug?

 

[DaJMasta]

Hard to tell, could be algae/sponge or their detritus.

Important thing: does it move around? If it's crawling, could be nudibranch cerata.

If not, you can probably just wipe it off and be good.

 

[fishcare]

Seems to be attached to the plug and sways in the flow. Doesn’t retract or react when touched. So probably algae/sponge then. Thank you!

Hard to tell, could be algae/sponge or their detritus.

Important thing: does it move around? If it's crawling, could be nudibranch cerata.

If not, you can probably just wipe it off and be good.

 

[TangerineSpeedo]

Is that green Pocillaopora coral?

 

[Sisterlimonpot]

It looks like algae of aome sort. Peroxide bath or simply scrape it off with a toothbrush.

 

[fishcare]

Is that green Pocillaopora coral?

Blue stylo

 

[TangerineSpeedo]

Blue stylo

Whew... I got worried there...