Usually Ophi is the "star master" so I will respond with my IMO response. I have not read your other post but I will take this post as a problem of having cloudy water and you thinking it is due to salt. IF I bought a new bucket of salt (and I don't care if it's the same brand I have always purchased or a new brand), and if my tank water became cloudy VERY shortly after using the new salt I would suspect the salt. From there, I would mix a new batch up in my 18g container with - RO water, power head and heater - and let it soak for at least 24 hours. If it's clear, I would use it and if not then no. If it's clear, I would make sure my tank is clear before I added it because then it's a matter of "how would you know". If it's clear and I use it and my water became cloudy then the salt goes and I buy another bucket of something. I see one problem with my proposal and that is how to get your water clear before you do your testing. I guess you could run carbon or maybe time will settle your tank. Not sure on the settling issue since I have not seen your other thread so I don't know if the cloudy issue is a consant thing or something that happens only during water changes. Sorry for stepping in!
