PH Drop checkers problem

[SnowRider]

So I have two different Co2 drop checkers. They are reading different colors and I can figure out why.
Any ideas on why this is happening?
The top one seems correct but the glass one that's 4 inches down is very light yellow.
Finish are not gasping at surface at all.

 

[Caliban07]

What makes you think the top one is correct?


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[Ziggy953]

I would suggest taking both of them out, clean them and replace the reagent with new solution. The glass drop checker should only be just below the surface (the whole thing I mean)

 

[SnowRider]

@Caliban07 Because the fish are not dead....

 

[SnowRider]

@Ziggy953 Did that today. Split the two drop checkers to both ends of the tank and refreshed the juice in them.
I think the blue reagent in both drop checker kits are different.

 

[Brookster123]

Do you have the same mixture in each dc?

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[Delapool]

The blue looks a bit like the fluval solution I have when it is straight out of the bottle and hasn't started to change colour. Wondering if a blocked drop checker could also be cause.

 

[SnowRider]

@Brookster123 No; that might be the problem.

The one on the left came with the kit in the pic above. The other solution came with this drop checker.

 

[Brookster123]

Well there's your problem...

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[SnowRider]

@Deadpool You running pressurized CO2 through a reactor?

 

[SnowRider]

@Brookster123. Have you had this problem before? What do you think I should do for the solutions? The solution for the fully glass drop checker is the one that changes the most. It was piss yellow today

 

[SnowRider]

Also I have been checking the pH and it is stable

 

[Brookster123]

Just use the glass dc. Unless you water is crazy? 4dkh w 4 drops if regent

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[SnowRider]

Regardless of the drop checkers; I think I have it balanced out.

 

[Delapool]

@Deadpool You running pressurized CO2 through a reactor?

I'm am - it's an internal tunze diffuser hooked up to a ph controller. I keep an eye on bubble counts so as not to exceed the tunze capacity and have the drop checker as well but the ph controller is doing most of it for me. I've been recently told a ph probe for the controller lasts about 18mths. Recently checked and it's still ok so fingers crossed as it must be about that old.


http://www.amazon.com/Tunze-USA-7074-500-Diffuser-Compact/dp/B00H6YW0QK