SRC Member christan1959 Posted September 26, 2017 SRC Member Share Posted September 26, 2017 The calcium reading in my 3mth old 6footer is crazy. Using Tunze Ca reactor. At first, 290. Then I added Ca manually. Testing before and after every dose. Then somehow it shot up to 600 when I switched to a new batch of powder regent (previous one ran out). So I suspected it was the old regent. I let the Ca self-correct by using Red Sea Pro salt (which is super high in alk). Last week, things began looking "normal" - alk 10.4 and Ca 429. Then today, haywire again. Alk 10.0 and Ca 529. Anyone knows what's happening?? Quote Link to comment Share on other sites More sharing options...
SRC Supporter SubzeroLT Posted September 27, 2017 SRC Supporter Share Posted September 27, 2017 Which product are you using to test for calcium. Options could be re-measure with alternative product (eg. Nyos or Salifert). Ca can increase 100ppm in a week if the Calcium Reactor is not tuned right - (eg. effluent flow rate, CO2 bubble count etc). I assume you got that in control 1 Quote Facebook : https://www.facebook.com/mysliceofnature/ Link to comment Share on other sites More sharing options...
SRC Member christan1959 Posted September 27, 2017 Author SRC Member Share Posted September 27, 2017 I use Hanna test kit. Ca reactor: I always thought the reactor will raise kH and Ca in proportionate measure. Quote Link to comment Share on other sites More sharing options...
SRC Supporter SubzeroLT Posted September 27, 2017 SRC Supporter Share Posted September 27, 2017 Yeah Ca/KH should rise somewhat proportionally Perhaps test with Nyos or Salifert test kit for '2nd opinion'. Its possible the hanna checker may have some inconsistencies? Quote Facebook : https://www.facebook.com/mysliceofnature/ Link to comment Share on other sites More sharing options...
SRC Member christan1959 Posted September 27, 2017 Author SRC Member Share Posted September 27, 2017 Hanna supposed to be the gold standard. Anyway will monitor tank inhabitants. So far, SPS showing no stress. I also suspect the salt. Switched to FM for this new tank. Previously using Red Sea Pro, and I didn't encounter such fluctuations at all (with same Hanna kit). Quote Link to comment Share on other sites More sharing options...
sherman Posted September 28, 2017 Share Posted September 28, 2017 I found Hanna Calcium a bit erratic sometime. Best you double check with Salifert 1 Quote 6.5 * 2 * 2 + 3.75 * 1.5 *1.5,(Decomn on 14/9/08) 4*2*2 + 2.5*1.25*1.25 (Decomn on 1/8/09) 5*2*2 (Fully LED light system, 140 3 watt SSC leds with 60 degree lens)(Decomm) 2.5*2*2(Fully LED Light System,96 3 watt SSC leds with 60 degree lens)(Decomm) 5*2.5*2(LED only) Eheim return 1 * pump 1 HP Daikin compressor with cooling coil 2 Jebao OW40, 1 ecotech MP40, 1X6085 Tunze wm, 1 CURVE 7 Skimmer 1 DIY 80 led control by Bluefish mini 1 radion XR30W G2, 2 Radion XR15G3 Sump area lite by 5 ft T5 , 6 * SSC 3 watt red LED for refugium 1 Full spectrum E27 led light 1 CR control by bubble count Start No Water Change since 1st Dec 2016 Add new 2.5x2x 1.5 ft [/quote] Link to comment Share on other sites More sharing options...
SRC Member christan1959 Posted September 28, 2017 Author SRC Member Share Posted September 28, 2017 I see But I never had this problem with previous tank (using Hanna too). 1 Quote Link to comment Share on other sites More sharing options...
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