Freshwater salt + Water tests

[sivic]

Does having freshwater aquarium salt effect water tests? As i know if you have a brackish water you cant use freshwater tests.

[happychem]

Adding salt produces an apparent increase in concentration by fixing water molecules as waters of hydration. Fresh water test kits are calibrated using fresh water standards, so if you use a fresh water kit on a brackish tank your results will be a little higher than the actual concentration.

[sivic]

Adding salt produces an apparent increase in concentration by fixing water molecules as waters of hydration. Fresh water test kits are calibrated using fresh water standards, so if you use a fresh water kit on a brackish tank your results will be a little higher than the actual concentration.

Im not that sure that quite answers my question. My tanks are freshwater with freshwater aquarium salt added. Not brackish. I was just using brackish as an example to say i know that it effects certain tests.

[happychem]

Ah! in that case, the answer is no, there will not be any measurable effect on your test kits using aquarium salt.

[N8DOGG]

and after your done with treating with the salt(what other reason do you need salt in a freshwater tank ;) ) you will eventually remove the salt with water changes so things will be back to normal.

Thanks Happy thats good info for everyone as always :)

[happychem]

Always glad to help when I can.:D