Math is not and never will be my strong suit.

[Randy Holmes-Farley]

Math aside, are things under control now, or are we still working through it?

 

[Yesevil123]

Yep. My bad I missed that. I wasn’t aware they had other test kits.

It's okay!!

 

[Reefering1]

Really, the math is not hard. Just plug the number of drops into this equation and out comes dKH:

 

[Yesevil123]

Math aside, are things under control now, or are we still working through it?

Yes!!

 

[Aquariumaddictuk]

Really, the math is not hard. Just plug the number of drops into this equation and out comes dKH:

 

[Reef keeper 103]

Imagine contaminating a water sample and thinking that your alk is 4.5 DKH
Calcium 59.94 ppm on a digital read out test

 

[Yesevil123]

I don't have time this morning. Can one of you just make a nice table, please? Excel, whatever, and screen shot and past her a graphic that she can reference.

Drops - DKH for both 5 ml and 10 ml with a column for readings direct and overdose

Does the first drop that I put in, count as one of the drops towards the result or is it just the starting drop

 

[BeanAnimal]

Does the first drop that I put in, count as one of the drops towards the result or is it just the starting drop

Every drop counts, including the first one.
Your question is reasonable, the instructions actually do not make that overly clear.

Do you understand the "end" color vs the "overdose" color and how that works?

 

[BeanAnimal]

Actually the more I read those instructions, they are terribly written... but the drop count ambiguity is glaring.

The good part is that it really does matter either way, as long as you always do it the same way. The actual alkalinity value in your tank is very forgiving.

 

[Yesevil123]

Okay so my next question. Using the same red sea kit. Nitrate test came back between 10 and 20 on the color scale? Im reading different things... is this to high? Or acceptable? Color in vial is only viable for 2 minutes, it's been past 2 minutes. Just giving the color it represented with

 

[Yesevil123]

Every drop counts, including the first one.
Your question is reasonable, the instructions actually do not make that overly clear.

Do you understand the "end" color vs the "overdose" color and how that works?

Okay, i thought so. I was doing it that way anyways. I just sometimes over read stuff and think about it way to much. But yes. It turned yellow instantly after adding the 9th drop. It turned green the first time I did it

 

[Kooma]

I've tried those test kits. I have some still. It just confusion for me

DHK for salifert is easy.

advised amount of water in the vile using the provided syringe
drops of reagent 1
fill small syring with reagent two
drip reagent 2 into the vile until color changes, swirling slightly between drops.

stop when color changes and read syringe level to chat. chat has results.

This test takes maybe a minute to complete and is the easiest ive had. I have hannas and prefer this to be honest, i find the hannas creep on readings depending how fast or slow you work, and they auto turn off which i hate.

 

[bubbgee]

This is why I like salifert. I hate testing with Hanna too with all the potential issues with finger smudging and the like.

 

[Jasonak]

I also struggled with maths hopefully this informative video will help.