You took salt water out...you put salt water in.
You are taking saltwater out of the aquarium, like when you do a water change, therefore you must add back saltwater, or you will be dropping the salinity! If the LFS replaced with RO/DI, it would be fresh water tanks!Ain't it the same as evaporation just put rodi water and every thing should be the same .
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Ok I'll rodi every body does there own voodo
everyone has their own way of doing things, but certain things can only be done in two ways: right and wrong.
if you going to add freshwater, then you doing it the wrong way...
you asked a question, listen to the post before this one. or you will be stressing your fish...
you only add freshwater if it eveporates, cause the salt of the evaporated water is still in tank, but if you remove saltwater, it MUST be replaced with saltwater...