What is growing on my snail?

[cluelessclown22]

I have a 40g saltwater tank all levels are wnl. But what is growing on my snails shell? Pictures attached

 

[KJ]

Valonia (Bubble Algea)

 

[savetheocean]

Looks like bubble algae. If you really hate it, you can probably just scrub it off, It would tick off that snail though.

 

[DSC reef]

I'd remove the bubble algae. Remove the snail from the tank first then remove the algae. If you release spores in the tank then it will pop up all over.

 

[mcarroll]

I have a 40g saltwater tank all levels are wnl.

What's "wnl"?

How new is the tank and what are your most recent test results....especially for NO3 and PO4?

(If you scrub it off, do it outside the tank in a bucket of water change water you're about to throw out.)