- Joined
- Apr 21, 2020
- Messages
- 118
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- 92
I have a tough time figuring out if my tank is 1.008 or 1.005 (yikes!!). It seems to depend on how I calibrate my refractometer. I have always used RO/DI but I recently bought some calibration solution which is 35ppt or 1.026. When I use RO to calibrate, my tank is currently 1.008 but if I use the calibration solution, it is 1.005. The second is a little hard to believe as the fish look happy and healthy and as far as I know, that is dangerously low.
Any ideas?
Any ideas?