Compared the indication of tests for alkalinity (measurements in the aquarium at the same time)

Hanna 8.4 KH
Red Sea Alkalinity Pro 8.55 (average between 8,4 & 8,7) (+0.155 KH from Hanna)
Salifert 8.6 KH (+0.2 KH from Hanna)
View February 18, 2018 10:35
The Ph electrode was calibrated in a calcium reactor. Underestimated the reading by about 0.1. The last calibration was about 6 months ago.
View February 13, 2018 04:55
To do Custom Liquid Carbon Mix for dosing
200 ml vodka (40%)
200 ml osmos water
400 ml vinegar (9%)
20 gr sugar

View February 11, 2018 21:15