Is this bad?

I know these are blurry but hear me out.  This is Speedy G. our snail.  He/She (they are hermaphrodites) does a great job cleaning the algae in the fish tank.  But today, I noticed something interesting growing on Speedy G......

Yep, a hearty amount of algae is growing on his/her shell.  Oops, is that bad?  I wonder if the loaches will help him out with his problem.  Or maybe the other fish will gang rush him and kill him so we have yet another snail shell adorning our tank. 
Who knows.  I guess we'll have to wait for nature to run its course.