SamsReef
Valuable Member
folks, I started using tropic marine regular a month back and my Ph has gone over my comfort zone. Not sure if it is the salt or the RODI water itself.
System: 340 gallon with 50 gallon frag tank and 150 gallon sump all plumbed together. I do 50 gallon water change weekly. Two large skimmers collectively rated for 700 gallon with heavy bio load. I used to dose soda ash, I dose bicarbonate since last two weeks and has not made a dent. The tank is a mixed reef with a lot of SPS/LPS. I also dose 50 ml of vinegar (5 percent)
Readings: my tank have always read in between 8.2 and 8.4. Now it reads in between 8.5 and 8.7. KH is around 8. Rest of the parameters read normal for calcium, mag, trates and phosphates. I have ordered a triton test and it is on its way.
Actions taken: calibrated my ph probes Twice..changed from carbonate to bicarbonate, tested readings in fresh saltwater, water in my area and in RODI container
In the tank this morning: 8.57
Fresh saltwater prepared on Friday: 8.8???
RODI in large container: it went upto 10.5 and went down to 8.2. Don't understand
I also had the exhaust in the fish room running full day and did not make a dent. So there is enough circulation.
I also tried dosing CO2 with my spare calcium reactor and it was not making dent enough with excessive dosing so I took it offline. Do not understand why it did not bring the Ph significantly down since it generally used to in the past when I was running calcium reactor at much slower affluent rate.
What else can I check?
I am already doing everything to keep the Ph lower- fuge in reverse light cycle, using bicarbonate, CO2 dosing....I have read Randy's article in high Ph and these actions were done using the article.
I have ordered fresh calibration fluid but I doubt that is the issue as my probes do read 7 and 10 calibration fluids correctly.
Thoughts?
Sam
System: 340 gallon with 50 gallon frag tank and 150 gallon sump all plumbed together. I do 50 gallon water change weekly. Two large skimmers collectively rated for 700 gallon with heavy bio load. I used to dose soda ash, I dose bicarbonate since last two weeks and has not made a dent. The tank is a mixed reef with a lot of SPS/LPS. I also dose 50 ml of vinegar (5 percent)
Readings: my tank have always read in between 8.2 and 8.4. Now it reads in between 8.5 and 8.7. KH is around 8. Rest of the parameters read normal for calcium, mag, trates and phosphates. I have ordered a triton test and it is on its way.
Actions taken: calibrated my ph probes Twice..changed from carbonate to bicarbonate, tested readings in fresh saltwater, water in my area and in RODI container
In the tank this morning: 8.57
Fresh saltwater prepared on Friday: 8.8???
RODI in large container: it went upto 10.5 and went down to 8.2. Don't understand
I also had the exhaust in the fish room running full day and did not make a dent. So there is enough circulation.
I also tried dosing CO2 with my spare calcium reactor and it was not making dent enough with excessive dosing so I took it offline. Do not understand why it did not bring the Ph significantly down since it generally used to in the past when I was running calcium reactor at much slower affluent rate.
What else can I check?
I am already doing everything to keep the Ph lower- fuge in reverse light cycle, using bicarbonate, CO2 dosing....I have read Randy's article in high Ph and these actions were done using the article.
I have ordered fresh calibration fluid but I doubt that is the issue as my probes do read 7 and 10 calibration fluids correctly.
Thoughts?
Sam
