My water evaporates very fast since I dont have a top (read it was better this way). I tested my salinity and its a little too high and my LFS told me to top off my tank using fresh water not salwater... Right now I top off my tank with Saltwater I buy from my LFS, I wanted make sure I am doing the right thing when topping off my tank since my LFS have given me wrong information in the past.
Thank you.
Thank you.