Background;
- New tank, Waterbox 220.6, cycling. No water changes to date, tank has been wet for a couple weeks.
- All dry Marco rock going in.
- Using the APEX conductivity and Ph probes
- Tank between 78-79 degrees
- Used Kent Reef Salt Mix, https://www.kentmarine.com/products/sea-salt.htm
- Just a couple green chromis in the tank at this point
- Recalibrated the Apex probes using recently purchased calibration solution packets
- Skimmer running (although not doing much other than aerating the tank at this point). Windows have been open, don't think its a CO2 issue.
When I filled the tank originally, I took out my calculator computed how much salt I would need. The salt measurement has always been nearly correct, currently showing 34.4. My PH measurement always shows 7.82 instead of the 8.2 I would expect from the packaging.
Am I missing something obvious? My instinct is that the probe (and calibration procedure?!) must be off, but I repeated the experiment of recalibrating twice. I tried to double check everything with a Red Sea test kit. My best guess from the eye color Rorschach tests were that ALK=7.98 and PH=8.2. So I guess that means my probe is kaput? It is 3-4 years old, from an old tank, was unused the last 16 months because, life.
Thanks!
- New tank, Waterbox 220.6, cycling. No water changes to date, tank has been wet for a couple weeks.
- All dry Marco rock going in.
- Using the APEX conductivity and Ph probes
- Tank between 78-79 degrees
- Used Kent Reef Salt Mix, https://www.kentmarine.com/products/sea-salt.htm
- Just a couple green chromis in the tank at this point
- Recalibrated the Apex probes using recently purchased calibration solution packets
- Skimmer running (although not doing much other than aerating the tank at this point). Windows have been open, don't think its a CO2 issue.
When I filled the tank originally, I took out my calculator computed how much salt I would need. The salt measurement has always been nearly correct, currently showing 34.4. My PH measurement always shows 7.82 instead of the 8.2 I would expect from the packaging.
Am I missing something obvious? My instinct is that the probe (and calibration procedure?!) must be off, but I repeated the experiment of recalibrating twice. I tried to double check everything with a Red Sea test kit. My best guess from the eye color Rorschach tests were that ALK=7.98 and PH=8.2. So I guess that means my probe is kaput? It is 3-4 years old, from an old tank, was unused the last 16 months because, life.
Thanks!