This thread confuses me (changing salts to fight cyano).
If there is a question of the salt importing. Nutrients then test the make up water, then mix up some salt water and test that. If either shows nitrate or phosphate then your onto something. Otherwise look elsewhere.
Nutrient control is all about managing import vs export. Food imports tons of nutrients, particularly phosphate. Detritus not removed from the system will contain and leech out tons as well. Rock that has.been in a high phosphate environment can have phosphate bound to its surface and releases it when exposed to lower phosphate water.
Tank water will often seem to test zero because the nuisance algae is sucking it up as soon as it becomes available. Salt mix isn't causing these problems, and if it were it would be super easy to confirm by testing newly made water.
If there is a question of the salt importing. Nutrients then test the make up water, then mix up some salt water and test that. If either shows nitrate or phosphate then your onto something. Otherwise look elsewhere.
Nutrient control is all about managing import vs export. Food imports tons of nutrients, particularly phosphate. Detritus not removed from the system will contain and leech out tons as well. Rock that has.been in a high phosphate environment can have phosphate bound to its surface and releases it when exposed to lower phosphate water.
Tank water will often seem to test zero because the nuisance algae is sucking it up as soon as it becomes available. Salt mix isn't causing these problems, and if it were it would be super easy to confirm by testing newly made water.



