FW snails in Calgary?

[pandafishowner]

I've got a bit of an algae breakout in my 29g tank, and the 2 rams horn snails I have aren't cleaning it at all. I was told I could go with an Apple snail or a few Mystery snails. Was wondering if anyone here has any they'd lend me or I could buy from? I don't have much to spend right now, but need a cleaning crew badly. I can afford around maybe $10 right now, but I'd need them delivered to Dover if possible. I don't want to go spend around $6/each in a store if I can avoid it. Let me know. Thanks As far as fish go, I have 6 guppies, 4 cories, 2 rams horn snails, and 3 barbs (I think - 1 is almost all gold with a little black and is supposedly a clown barb and I can't remember what the other 2 are but I bought them from Gold's and they're orange and black striped)?