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Crazy calcium


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  • SRC Member

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??

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  • SRC Supporter

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

 

 

 

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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?

 

 

 

 

 

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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).

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I found Hanna Calcium a bit erratic sometime.

Best you double check with Salifert

 

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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

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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

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Start No Water Change since 1st Dec 2016

Add new 2.5x2x 1.5 ft 

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