Thats why we advise to never buy cheap in this hobby.... the cost of the refractometer plus the cost of the hydrometer is close to the cost of the hanna checker, which is the best of the best. (every one of us has been burned this way, a few times)I’ve Got the Salinity down to 1.026 now at least according to my hydrometer, the only reason I got a hydrometer is because I’ve heard there are a lot of variables with a refractometer and lighting, angle, amount of water and many more things can affect results and everything has to be the exact same every time you test to get an accurate result
I’m hoping my corals can make a recovery, is it likely that they will?And would it be worth getting some coral food like reef roids and feeding them to help them recover?
Here are pictures of all of my coral today
Favia, chalice (I think that one is dead), acan, sponge and candy cane