SNAILS

Your fish do not need salt, especially not aquarium salt which will not create brackish conditions. For that you need marine salt.

I agree that your pH is fine. Most likely they starved unless your tank has a lot of algae or is heavily planted and can supply a lot of decaying plant matter.
 
Sounds like they starved.....
 
Your fish do not need salt, especially not aquarium salt which will not create brackish conditions. For that you need marine salt.
You don't need marine salt either.;)

What species are these livebearers? They can do well without salt. That clerk is spreading another myth again.:shakehead:
 
Snails can actually tolerate salt at levels appropriate for ich treatment, although its certainly not recommended and not for a long duration
 
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