DiZASTiX
Spikeasaurus
Why are pH and ORP low? I expect pH to be 8.0 to 8.3 and ORP to be certainly at least 100 points higher. In the past, without much of a biological load, ORP rose quickly (and, using a controller), topped off at 450. pH and ORP seem to be both rising over the course of several days, when zoomed out at that level.
Given that pH is the key parameter of question, I've measured it chemically using a test kit and using a probe. Both confirm my test results.
I have 40 gallons of sea water with the following measured parameters. Tests were repeated on a regular basis and found not to deviate outside de minis amounts:
Established time: ~1 month
Water is highly turbulent using Tunze Turbelle. The display tank has so much flow that I had to turn down the Turbelle, as no matter how much I positioned it, combined with the Reef Octopus VarioS-6 return, water would blast out the front or sides.
Water is on enclosed space and windows are seldom open.
This sounds totally random but it's not. It's my coral reef aquarium, and I think, but can't confirm that corals and other animals are dying because of it. Whatever you have is great!!
So far I've dosed kalkwasser / limewater, which has a pH of 12, and that only briefly raises pH before it settles.
I'm going to be trying opening windows (hypothesis: too much CO2 lowers pH), but the flat is pressurised and air is blown out the window due to shared hallway ventilation.
Given that pH is the key parameter of question, I've measured it chemically using a test kit and using a probe. Both confirm my test results.
I have 40 gallons of sea water with the following measured parameters. Tests were repeated on a regular basis and found not to deviate outside de minis amounts:
- pH: 7.87
- Salinity: 1.026 SGORP: 247 and rising slowly though falling too.
- Ammonia: 0 ppm
- Nitrite: 0 ppm
- Nitrate: 0 ppm
- Phosphate: 0 ppm
- Calcium: > 550 ppm
- Magnesium: 1500 ppm
- Alkalinity: 13.8 dKH
- Copper: 0 ppm
- Temperature: 27 C
Established time: ~1 month
Water is highly turbulent using Tunze Turbelle. The display tank has so much flow that I had to turn down the Turbelle, as no matter how much I positioned it, combined with the Reef Octopus VarioS-6 return, water would blast out the front or sides.
Water is on enclosed space and windows are seldom open.
This sounds totally random but it's not. It's my coral reef aquarium, and I think, but can't confirm that corals and other animals are dying because of it. Whatever you have is great!!
So far I've dosed kalkwasser / limewater, which has a pH of 12, and that only briefly raises pH before it settles.
I'm going to be trying opening windows (hypothesis: too much CO2 lowers pH), but the flat is pressurised and air is blown out the window due to shared hallway ventilation.
