I rescued a clown and damsel that was being kept in a 5-gallon tank. When I got home I immediately checked the salinity in the water they are in and according to my hydrometer, the salinity level is literally off the charts. I initially thought it was a calibration issue so I check my 32 Biocube and it read 1.027 as expected. What would be the best way to adjust the salinity for them as I am worried about a potential system shock if I go too quickly. I am equally as worried about them remaining in those conditions. Also sorry I haven't been on in so long had a ton of stuff going on lately. 2020 has definitely not been uneventful. Thank you in advance for any advice