What is a dangerous level for nitrates with snails?

Jag1980

Got Plants?
Aug 18, 2008
1,236
1
0
46
Marysville, Wa
If I dose nitrate into my tank and snails are sensitive to Nitrate levels, what level of Nitrates is un-safe?
 
My dosing is suppose to give my about 7.25 in one dose, after the week is done I don't think I would be over 10 so it sounds like I should be safe.

Just want to make sure so I don't harm my snails :)
 
AquariaCentral.com