I have recently setup a nano reef tank after years of interest and being freshwater. Earlier today I made 25 litres of RO water and added a heater and pump ready to use for a water change. I added 1kg of h2ocean salt following the instructions, I came back an hour later to check the level and it is only reading 1.007, I normally use a kilo to make my water 1.025. Is there anything obvious that will cause such low salinity levels? I am using a new bucket of salt that I mixed before using
Thanks
Thanks