need a loach to erradicate snails

My tank has become overrun with snails! The awful little beasties have covered nearly every surface with snail poo that I can't clean fast enough. Here are the specs on the tank:

Size: 55g
Temp: 80*
pH: 6.5
Arrangement: heavily planted with swords, vallisneria, sagittaria, java ferns, wisteria, anubias barteri var. nana, R. rotundifolia, java moss, microsorium, crypts, & Christmas moss. Hope to soon add some hygrophila, perhaps corymbosa or polysperma. Also includes several pieces of driftwood.
Substrate: 50/50 mix of gravel and Fluorite
Inhabitants: 1 large angelfish, 12 black neon tetras, 2 otocinclus catfish, unknown # of cherry shrimp

I've never kept loaches before so I don't know what my options are. All I know is that they are generally very active I will need at least 3 in order for them to be happy. Are there any that stay relatively small? I want to get some more angels and I don't want the poor things to be stressed out by a bunch of big boisterous loaches bouncing around. Also would my precious little cherry shrimp be safe or would they become dinner too?

Thanks