I normally keep it at 1.023 to 1.024. I put the hose into my sump & started to add fresh RO water to my sump/tank & started doing somthing else & I had a flood. My salinatey is now 1.020 is this putting my reef in danger being this low or is it not that bad. Will I make it worse if I bring it back up tonight or should I do this over a few days ? I would hate to shock the tank again.
TIA
TIA