What is on my frogspawn?

[VtecGuy88]

I've had this frogspawn for a year and a half and as you can see it has grown significantly. There is a milky substance all the way around the base of it and it's been like this for at least 6 months. I'm just wondering what it is. My emerald crab hangs out under the coral quite a bit but I don't know if that has anything to do with it. I've been reefing since 2015 and I've seen alot but I don't know what this is.

 

[fishguy242]

White encrusting sponge ?

 

[VtecGuy88]

White encrusting sponge ?

I'll google that, thanks.

 

[ISpeakForTheSeas]

Yeah, it's a sponge of some variety. If the frogspawn is happy and not being overgrown by the sponge, then the sponge is a harmless filter feeder.

 

[kevgib67]

You can always take it out of the tank and scrape it off if it starts bothering the frogspawn.