Hi all.
When I began monitoring redox about a year ago, my husbandry schedules and methods have improved. That said, I began with redox levels between 150 and 200. Today, I'm climbing into the 490s and at this point I'm slightly concerned.
The tank system (140 gallons) is thriving, I should note.
Here's what I've done that's upped the redox. Feedback would be appreciated.
1. Added ozone, which only kicks in during water changes; it's off the rest of the time and set at 400.
2. Added a refugium that gravity-feeds into the main 90gal tank. It's thriving as well and is reverse day cycled. I harvest macro algae out of it monthly.
3. Switched to RO/DI, and change approx. 15% weekly with salt mix from SeaChem
4. Auto dose with mag / calc and alk for optimal levels; these levels are by-the-book and always bang on.
5. Dose with Zeo products, including a weekly 5ml dose of ZeoSpur. This has the effect of a rapid reduction in REDOX (e.g. from 475 to 325 followed by a steady climb back to stable REDOX over a period of 2 to 3 hours).
6. Phosban and Carbon reactors are running, with microfine carbon in second place prior to re-entering the sump.
So: should I be concerned? Everything is thriving, but after each water change I've noticed that the REDOX readings have increased over the months, climbing from a a satisfying 450 slowly but steadily up over the past 3-6 months.
In particular, my SPS corals are growing by the day. Fish are all healthy.
Note: I've thought that perhaps the REDOX probe may be drifting upward and I'll recalibrate it next week when I've got the time, but I know for a fact that my water is much "purer" (sorry for being crude) that it was 6 months ago. Is there such a thing as water that's too "clean"?
Regards,
Erik
When I began monitoring redox about a year ago, my husbandry schedules and methods have improved. That said, I began with redox levels between 150 and 200. Today, I'm climbing into the 490s and at this point I'm slightly concerned.
The tank system (140 gallons) is thriving, I should note.
Here's what I've done that's upped the redox. Feedback would be appreciated.
1. Added ozone, which only kicks in during water changes; it's off the rest of the time and set at 400.
2. Added a refugium that gravity-feeds into the main 90gal tank. It's thriving as well and is reverse day cycled. I harvest macro algae out of it monthly.
3. Switched to RO/DI, and change approx. 15% weekly with salt mix from SeaChem
4. Auto dose with mag / calc and alk for optimal levels; these levels are by-the-book and always bang on.
5. Dose with Zeo products, including a weekly 5ml dose of ZeoSpur. This has the effect of a rapid reduction in REDOX (e.g. from 475 to 325 followed by a steady climb back to stable REDOX over a period of 2 to 3 hours).
6. Phosban and Carbon reactors are running, with microfine carbon in second place prior to re-entering the sump.
So: should I be concerned? Everything is thriving, but after each water change I've noticed that the REDOX readings have increased over the months, climbing from a a satisfying 450 slowly but steadily up over the past 3-6 months.
In particular, my SPS corals are growing by the day. Fish are all healthy.
Note: I've thought that perhaps the REDOX probe may be drifting upward and I'll recalibrate it next week when I've got the time, but I know for a fact that my water is much "purer" (sorry for being crude) that it was 6 months ago. Is there such a thing as water that's too "clean"?
Regards,
Erik
