Greetings and thank you in advance for any advice. I have always bought premixed water from my lfs. My coral is constantly in and out of stress mode especially after water change. I tested all parameters and they are perfect. Naturally I came to the conclusion that the problem may be salinity swings.
I got a refractometer calibrated it with 35ppt calibration fluid and double checked that after calibrating it red 0 with RO water. When I tested my tank it read 39PPT and SG 1.028-1.029. What is the best way to bring this down to 35 PPT. If I mix water at 35 and do my normal water changes will this bring salinity down safely or do I need to be more gradual. I don’t mean bring it down in one water change I will be doing it about 20% at a time.
I got a refractometer calibrated it with 35ppt calibration fluid and double checked that after calibrating it red 0 with RO water. When I tested my tank it read 39PPT and SG 1.028-1.029. What is the best way to bring this down to 35 PPT. If I mix water at 35 and do my normal water changes will this bring salinity down safely or do I need to be more gradual. I don’t mean bring it down in one water change I will be doing it about 20% at a time.