Is this a sponge? ID help please

[CarolineJ]

I have a few spots of these in my tank and I'm unsure what they are.

 

[Semper.Reefing]

Looks like the sponges growing in my tank

 

[CarolineJ]

Thanks! I read through other posts before I posted and didn't find any just like this, but pretty similar. Always had to have more filter feeders

 

[WalkerLovesTheOcean]

Yes, sponge - harmless filter feeder.

 

[Semper.Reefing]

Thanks! I read through other posts before I posted and didn't find any just like this, but pretty similar. Always had to have more filter feeders

Definitely a sign of a healthy tank! It’ll Have a rough texture to it if you’re ever working in the tank.

 

[Semper.Reefing]

Mine got pretty big! Just letting it grow out. Has a cool hint of blue color to it.