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Help deciphering API kit

Wraithie

By Wraithie
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Wraithie Shrimp Breeder

Wraithie

Posted
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post-346-139909864532_thumb.jpgI'm using an API gh and kh test kit and would appreciate some clarification on how to read the results, I have included a photo of the 'conversion chart' they provide.

So if I use 8 drops of KH solution it gives a KH of 8, easy, but how do I read and convert the GH? I used 4 drops meaning a ppm GH/KH of 71.6, what does this mean?

*

post-3442-139909863182_thumb.jpg

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jayc Shrimp Guru

jayc

Posted
Posted

but how do I read and convert the GH? I used 4 drops meaning a ppm GH/KH of 71.6' date=' what does this mean?

*[/quote']

It means GH is 4.

They use the same table for KH and GH.

So your water parameters are

KH = 8

GH = 4

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Squiggle Shrimp Guru

Squiggle

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1dGH is equal to 17.9ppm of calcium & magnesium in the water causeing it to be hard, then if you have a reading of 2dGH then it's twice as much calcium & magnesium so it's twice 17.9ppm & therefore 35.8ppm. I hope that makes it more simple to understand. :encouragement:

edit: ppm = Parts Per Million

Just re-looked at the sheet & the drops are the same for KH as for GH 1 drop = 1dGH/KH

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Wraithie Shrimp Breeder

Wraithie

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Thanks for your help, I still find it all confusing, but 1drop = 1dh/KH makes sense

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Garnelchen Shrimp Master

Garnelchen

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I'm glad I'm not the only one who thinks this is a stupid conversion chart....and the usage instructions are not much better! :mad:

That test kit sucks on many levels!

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mr_c265 Shrimp Breeder

mr_c265

Posted
Posted
1dGH is equal to 17.9ppm of calcium & magnesium in the water causeing it to be hard' date=' then if you have a reading of 2dGH then it's twice as much calcium & magnesium so it's twice 17.9ppm & therefore 35.8ppm. I hope that makes it more simple to understand. :encouragement:

edit: ppm = Parts Per Million

Just re-looked at the sheet & the drops are the same for KH as for GH 1 drop = 1dGH/KH[/quote']

I should just clarify that it isn't directly 17.9g of Ca or Mg, it's 17.9 g of CaCO3 equivalent. So adding 18g of MgCO3 will not give you an exact 1 dGH or 1dKH due to the different molecular weight of Magnesium to Calcium.

A pain in the arse i know, but you have to convert to moles and then back to CaCO3.

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Jimmynich Shrimp Keeper

Jimmynich

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Had this exact same problem when i first bought my GH and KH test kit, drove me insane for a few days! Ended up finding an answer on the internet (after much frustration)

Gj for clearing it up guys, that chart is absolutely ridiculous

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jayc Shrimp Guru

jayc

Posted
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CBS, CRS, SW, GB have very similar water parameter needs

PH: 6.2 – 6.6

KH: 0 – 1

GH: 4 – 6

TDS: 100 – 180

Water temp: 21 – 23

beaten

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Squiggle Shrimp Guru

Squiggle

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beaten

C'mon mate' date=' gotta be quicker on the "draw" :encouragement:[/quote']

Hahaha, you are the quickest fingers in the west! :victorious:

Actually, I just re read that & it sounds a bit risque' :barbershop_quartet_

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jayc Shrimp Guru

jayc

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In my defence, I posted more than the requested information. :barbershop_quartet_

:p

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Wraithie Shrimp Breeder

Wraithie

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Hahaha' date=' you are the quickest fingers in the west! :victorious:

Actually, I just re read that & it sounds a bit risque' :barbershop_quartet_[/quote']

TOO MUCH INFORMATION!

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