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  1. P

    200 GALLON JUNGLE STYLE

    Not done yet regarding nitrate testing. The possible problems with the way I have been using the photometric tester do lie in the sample prep. When I take a 250 ml (1 cup) sample from the aquarium, almost always just after the morning dosing, I strain it through a fish net to remove debris...
  2. P

    200 GALLON JUNGLE STYLE

    I am not so enamored of the Hanna photometric nitrate tester as before. It's been difficult keeping tabs on NO3 and I have become suspicious that the variability has more to do with anomalous behavior in the instrument than natural fluctuations in the actual concentration. It is not a question...
  3. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.83 ORP: 542 mV NO3: 7.0 ppm PO4: 0.88 ppm Fe: 0.42 ppm K: 40 ppm dGH: 3.4 Ca/Mg: 36/24 ppm dKH: 7.5 Almost certainly, the NO3 incline is due, in part, to the post-water change KNO3 boosts. However, as evidenced by the incline in PO4, which is not supplemented, recent...
  4. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.83 ORP: 543 mV NO3: 4.9 ppm PO4: 0.31 ppm Fe: 0.32 ppm K: > 40 ppm dGH: 3.4 Ca/Mg: 32/28 ppm dKH: 8.0
  5. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.83 ORP: 543 mV NO3: 0.10 ppm PO4: 0.21 ppm Fe: 0.10 ppm K: 40 ppm dGH: 3.1 Ca/Mg: 30/26 ppm dKH: 7.5
  6. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.82 ORP: 543 mV NO3: 0.01 ppm PO4: 0.25 ppm Fe: 0.09 ppm K: 35 ppm dGH: 2.9 Ca/Mg: 28/24 ppm dKH: 7.4 The program setting for CO2PRIMARY has allowed the running average pH to settle to 6.82. I am adjusting this just slightly to get back to 6.84. The running average ORP...
  7. P

    Get the Vaccine

    Barb and I got our second Pfizer shot Monday. Now, two weeks for full build and we're good. Looking forward to hitting our favorite haunts.
  8. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.82 ORP: 543 mV NO3: 3.2 ppm PO4: 0.83 ppm Fe: 0.10 ppm K: 40 ppm dGH: 2.7 Ca/Mg: 24/24 ppm dKH: 7.2 Yesterday I cleaned and changed all filters in processing loop 1R, and high speed loops 2 and 3, with the accompanying large big gulp water change. All the small-pore...
  9. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.82 ORP: 544 mV NO3: 8.6 ppm PO4: 0.37 ppm Fe: 0.27 ppm K: 30 ppm dGH: 2.8 Ca/Mg: 22/28 ppm dKH: 6.6 Yesterday I changed and cleaned all filters in processing loop 1L. This resulted in a big gulp water change of about 8 gallons. Half a liter of NeoMag was put into the 25...
  10. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.82 ORP: 544 mV NO3: 7.9 ppm PO4: 1.14 ppm Fe: 0.19 ppm K: < 30 ppm dGH: 2.9 Ca/Mg: 24/28 ppm dKH: 6.4
  11. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.82 ORP: 541 mV NO3: < 5 ppm PO4: 0.60 ppm Fe: 0.34 ppm K: 30 ppm dGH: 3.1 Ca/Mg: 26/30 ppm dKH: 6.6
  12. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.83 ORP: 537 mV NO3: 0.1 ppm PO4: 0.66 ppm Fe: 0.23 ppm K: 30 ppm dGH: 3.8 Ca/Mg: 32/36 ppm dKH: 6.5 In contrast with 16 March observation, both dKH and +K are now declining. I have cut back too much! I am adjusting K2CO3 dose to 1 m 15 s (12.5 ml). This is given three...
  13. P

    200 GALLON JUNGLE STYLE

    Early Thursday AM the pH began to rise due to CO2 depletion. At 04:22 pH hit 6.92 at which point the CO2BACKUP came on. This morning at 08:15 I installed a new CO2PRIMARY. Thursday, 25 March, at 01:15 the CO2PRIMARY bottle emptied. This bottle delivered 106 hours over a period of 73 days for an...
  14. P

    200 GALLON JUNGLE STYLE

    Today's numbers NO3: 0 PO4: 0.32 ppm Fe: 0.08 ppm K: 40 ppm dGH: 4.0 Ca/Mg: 36/36 ppm dKH: 7.6 Yesterday I removed these and several others in the weekly trimming. These swordplant leaves are 15" long (2 liter bottle for scale). Not done yet, I need to clip a few more as the tank is too...
  15. P

    200 GALLON JUNGLE STYLE

    This AM, before testing, I topped up the quarantine/holding tank, which typically means about a 4 gallon water change in the main tank. Today's numbers NO3: 4.9 ppm PO4: 0.04 ppm Fe: 0.08 ppm dKH: 8.4 Nitrate being stubbornly low, I am still tinkering with KNO3 to get somewhere over zero...
  16. P

    200 GALLON JUNGLE STYLE

    After a week of data-logging stable cycles, the following graphs illustrate the points outlined in 8 March post. The first O2 saturation cycle from the first week of February shows the pronounced dip in the oxygen tension starting at 07:00 each day. The second O2 saturation cycle shows the...
  17. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.85 ORP: 538 mV NO3: 4.1 ppm PO4: 0.12 ppm Fe: 0.15 ppm K: 30 ppm dGH: 5.6 Ca: 64 ppm / Mg: 36 ppm dKH: 9.3
  18. P

    200 GALLON JUNGLE STYLE

    Today I tested with a new La Motte Potassium test tube, and noticed right away that the inner slide tube calibration markings were different from the older one I have been using. I checked the reagents and the instructions and they are not different than those in the previous kit. So it seems...
  19. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.85 ORP: 540 mV NO3: 8.2 ppm PO4: 0.20 ppm Fe: 0.09 ppm K: 30 ppm dGH: 5.4 Ca / Mg: 50 ppm / 46 ppm dKH: 8.8 It may be noticed that I am no longer reporting EC. I am testing for values of all important parameters, and EC alone is not especially useful information. The...
  20. P

    200 GALLON JUNGLE STYLE

    Today's numbers pH: 6.85 ORP: 508 mV NO3: 0.6 ppm PO4: 0.37 ppm Fe: 0.12 ppm dGH: 5.5 Ca / Mg: 56 ppm / 42 ppm dKH: 8.7
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