Snails

[Kevany]

I'm sure this has probably been brought up in the past. I have some hair algae in my 30 gal tank that need to be taken care of. I did have a few turbo snails, but the all 3 have died over the past 3-4 months from flipping over and not being able to upright them self. I do have a couple of Bumble Bee and nassairius snails that I have had about 1 year but they do not seem to be interested at all in the hair algae. What type of snail do you all recommend I add to my tank that I would not have to reach in and flip upright? I should add that I do have 2 or 3 small Blue Leg hermits