About 4 month ago, I was too impatient and overdosed with NOPOX (3x normal amount) while also using Dr. Tim's product.
This created too much bacterial bloom which I believed resulted in competition with my coral zooxanthellae bacteria.
I think the corals may have trouble competing for Nitrogen and Phosphates and thus my coral polyps retracted and looked sickly.
Now I am much more careful with carbon dosing (1/3 of normal amount) since my Nitrate is 1 ppm and Phosphate is now at 0.1 ppm.
I understand Waste Away increases ORP when used. Lately for each weekly dosing (for the last 6 weeks--maybe this was always happening and I never paid attention to it) I have observed in my tank, upon initial dose of 60ml for my 60 gallon tank, my pH would drop from 3.2 to 3.06. This drop typically occurs in about 30 minutes (probably due to turning off protein skimmer.)
After a couple hours of shutting my protein skimmer off, I would turn it back on due to my pH levels going below 7.9. It would take about 24 hours before pH would bounce back to 3.2. I assume the low pH is bacterial growth and respiration of CO2 from all tank organisms and inhabitants.
The question I would like to understand is why would my ORP also drop? Say for instance my ORP is 320, after about 3 hours, my ORP goes down to 300. Again about after 30 hours, my ORP would slowly rise back up to 320 and beyond.
What is happening to my ORP?
This created too much bacterial bloom which I believed resulted in competition with my coral zooxanthellae bacteria.
I think the corals may have trouble competing for Nitrogen and Phosphates and thus my coral polyps retracted and looked sickly.
Now I am much more careful with carbon dosing (1/3 of normal amount) since my Nitrate is 1 ppm and Phosphate is now at 0.1 ppm.
I understand Waste Away increases ORP when used. Lately for each weekly dosing (for the last 6 weeks--maybe this was always happening and I never paid attention to it) I have observed in my tank, upon initial dose of 60ml for my 60 gallon tank, my pH would drop from 3.2 to 3.06. This drop typically occurs in about 30 minutes (probably due to turning off protein skimmer.)
After a couple hours of shutting my protein skimmer off, I would turn it back on due to my pH levels going below 7.9. It would take about 24 hours before pH would bounce back to 3.2. I assume the low pH is bacterial growth and respiration of CO2 from all tank organisms and inhabitants.
The question I would like to understand is why would my ORP also drop? Say for instance my ORP is 320, after about 3 hours, my ORP goes down to 300. Again about after 30 hours, my ORP would slowly rise back up to 320 and beyond.
What is happening to my ORP?
