Snail Question

Lowryder

AC Members
Feb 16, 2010
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Dirty Jerzey
My wife stopped at our LFS today and bought some snails, they are ramshorn and I am not happy. That is neither here nor there. My question is, they have on their shells what looks to white pit marks, should I be concerned? Also, what should I be feeding them and how often? I have algae waffers but the guppies love them too and I dont think the snails would even try if its srrounded by gups.
 
They are like a reddish and all are around 1/4 inch. My PH is 7.6 and I dont know my hardness because I havent gotten around to buy a new one. I know my water is hard but to what degree I am unsure.
 
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