4dkh recipie wording? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 08-26-2015, 01:08 PM Thread Starter
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4dkh recipie wording?

I got this 4DKH recipie from a stickey:
The wording seems confusing on steps 4&5. Do I add 50 mL (step 4) then add ANOTHER 50mL (step 5)...100mL total of 40DKH ?

Steps 5 seems to be step 4 redundant, with the word "the" in a different place, and the addition of Mix well... at the end.


1. Measure 3000 ml of distilled water using the 500 ml graduated cylinder and put it in a clean container. The container could be an empty 1 gallon distilled water bottle. (I found it easier to use 3000 ml, instead of the often suggested 5000 ml because you can make your standard with 1 gallon of distilled water instead of having to have a larger container or multiple containers)

To read the precise water level in the graduated cylinder.

-Place the cylinder on a flat surface.
-Make sure your eye is on a level plane with the of the meniscus.
-The meniscus is the half-moon curve formed at the surface of liquid.
-Water should be read from the bottom of the meniscus

2. Weigh 3.60 grams of baking soda, add it to the 3000 ml of distilled water and mix well, this will make a 40 dKH / KH standard.

3. Pour 450 ml of distilled water into the 500 ml graduated cylinder.

4. Pour 50 ml of the 40 dKH standard into the 500 ml graduated cylinder

5. Pour the 50 ml of 40 dKH standard into the 500 ml graduated cylinder and mix well, this will give you 500 ml of a 4 dKH standard.

Last edited by MJB13; 08-27-2015 at 03:07 PM. Reason: Faulty information...It wasn't my fault!
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post #2 of 6 (permalink) Old 08-26-2015, 02:27 PM Thread Starter
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period?
Is that one of those fancy new-fangled mathematical equation abbreviations for "You are absolutely correct, a total genius, and dashingly handsome"?

Wait...WAIT...Don't tell me if it isn't, I'm just a confused old man...let me dream for a while!
lol

Bump: I edited the paragraph in question...Is this right?

"KH standard


1. Add 3.60g baking soda to 3000 mL distilled water and mix well.
This will make a 40 dKH / dKH standard.

2. Add 50 ml of the 40 dKH solution to 450 mL distilled water and mix well.

This will give you 500 ml of a 4 dKH standard.

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post #3 of 6 (permalink) Old 08-26-2015, 06:00 PM
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Your last recipe looks correct to make, adding 50ml of 40dkh to 450ml of ro water would give you 500ml of 4dkh fluid.
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post #4 of 6 (permalink) Old 08-27-2015, 01:59 AM
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As nilocg mentioned, the corrected directions are the ones to follow to make a 4 dkH standard, as it is a simple 1 in 10 dilution.

Note that the original instructions to make a 5 dkH reference are incorrect and will not produce a 5 dkH solution.

Anthony


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post #5 of 6 (permalink) Old 08-27-2015, 03:04 PM Thread Starter
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Quote:
Originally Posted by nilocg View Post
Your last recipe looks correct to make, adding 50ml of 40dkh to 450ml of ro water would give you 500ml of 4dkh fluid.
Quote:
Originally Posted by Darkblade48 View Post
As nilocg mentioned, the corrected directions are the ones to follow to make a 4 dkH standard, as it is a simple 1 in 10 dilution.

Note that the original instructions to make a 5 dkH reference are incorrect and will not produce a 5 dkH solution.
Thanks nilcog, and the ferts are working great! I'll be ordering some GH booster soon...I'm tired of fooling with my nasty tap water!

Thanks DarkBlade, I dont care about the 5dKH, but I think I'll edit it out so someone else doesn't get it in their search-fu.

Bump:
Quote:
Originally Posted by Darkblade48 View Post
Note that the original instructions to make a 5 dkH reference are incorrect and will not produce a 5 dkH solution.
OP NOTE
Step 6, which was apparently incorrect, and has been removed!

40 breeder - 1.25" Dirt/1.25" Black Diamond cap - Pressurized CO2 (2.25bps) - 2x54watt T5HO and 42watt LED (total 150watts; 14,500 lumens) - EI dosing - 50% weekly WC - H.O.T. Magnum 250 canister - SunSun 530 gph pump - Set-up 7-14-2015 - Cycled 8-1-2015

"Whatever is inconsistent with the facts,
no matter of how fond of it we are,
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post #6 of 6 (permalink) Old 08-27-2015, 03:12 PM
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Quote:
Originally Posted by MJB13 View Post
Thanks nilcog, and the ferts are working great! I'll be ordering some GH booster soon...I'm tired of fooling with my nasty tap water!

Thanks DarkBlade, I dont care about the 5dKH, but I think I'll edit it out so someone else doesn't get it in their search-fu.

Bump:

OP NOTE
Step 6, which was apparently incorrect, and has been removed!

No problem. Let me know if you have any other questions.
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