Oxygen Sensors
- Thread starter lg2725
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Ron Reefman
Active member
Oxygen sensors?
Do you have a link?
Do you have a link?
slief
RC Sponsor
Personally, I don't think dissolved o2 is a particularly valuable measurement given the fact that most of us have lots of surface agitation and good flow. I know I have plenty of dissolved o2 based on my flow of which I have no shortage and the health of my fish. The sensors/probes are expensive too. If you were debating on spending that kind of money on a probe, I'd say it would be better off spent on getting some good power heads or pumps since that will benefit the system in more ways than one. If your income is disposable and you want to measure every available thing you can, then it might be interesting but probably not very useful.
coralfish
Premium Member
At $700 for the sensor + $90 for the module and $60 for the diaphragm sets; given that I have 5 power heads and 2 return pumps, surface agitation like the ocean tide and water falling into the sump like Niagara Falls...I can't see the need for one. I can spend $1000 on something else!
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coralfish
Premium Member
Oxygen Sensors
If this is an issue your pH is going to be your first indication of a problem with CO2. Adjust it from there and save your money.
What are your plans to correct the issue if your O2 sensor reads low? Most likely the same as if your pH is low.
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If this is an issue your pH is going to be your first indication of a problem with CO2. Adjust it from there and save your money.
What are your plans to correct the issue if your O2 sensor reads low? Most likely the same as if your pH is low.
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coralfish
Premium Member
Oxygen Sensors
You're the one that mentioned CO2 levels as an issue in urban apartment environments...your first indication of CO2 issues will be low pH.
Power heads at the surface of the water and increased flow through the sump keeps water oxygenated and helps to combat CO2/O2 exchange.
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You're the one that mentioned CO2 levels as an issue in urban apartment environments...your first indication of CO2 issues will be low pH.
Power heads at the surface of the water and increased flow through the sump keeps water oxygenated and helps to combat CO2/O2 exchange.
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I have 4 powerheads in a 120G, a 70G basement sump that has 3 drains splashing into it, a skimmer that bubbles like crazy, not to mention (2) double loc lines to agitate the surface but yet when my AC is on I still get PH levels in the 7.70 range. Windows open, yes, it rises to about 8. The GHL O2 sensor is "only" $300. A big difference from $1000. Some people say "Don't worry about PH, you have a reef tank.". I just wasn't sure if people actually used one, and if they did or did not then why not since it isn't too expensive given the amount of money we spend in this hobby.
Slief, as far as disposable income. It seems I dispose all of my extra money into this hobby. LOL
Slief, as far as disposable income. It seems I dispose all of my extra money into this hobby. LOL
slief
RC Sponsor
I think most of us are in touch with that emotion. :beer:
Low pH is a typically a function of elevated Co2 levels in the air. The O2 sensor will be less of an indicator of that than pH.. If you can get your skimmers air intake connected to a pipe that pulls fresh air from outside, that will help. The O2 probe from GHL is a great value but while the probe is only $300, you still need the PLM-Oxygen add in card but even that is only an additional $79. So at $379 for the probe and card, it's still much less than Dissolved o2 probes for other controllers. I just never saw the need for having one.
