not really any reason to remove it TBH... it may harm him and its not huring him to leave it
his snail buddies will clean him off shortly
Algae doesn't hurt the snails. My nerites and BN plecos do a good job wiping algae off the shells.
Oh, I thought you said the algae may harm him.that is exactly what I just said
I meant that REMOVING IT MAY HARM HIM
which is why I told the OP to LEAVE the algae lol
I wouldnt want to risk scratching his shell by trying to take it off... especially when the algae isnt doing anyone any harm
you could try a plain magic eraser.
I say just leave it, Im sure the snail doesn't mind