drop checker - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 12-03-2012, 12:52 AM Thread Starter
Planted Member
 
supergreeneye's Avatar
 
Join Date: Oct 2011
Location: las vegas
Posts: 272
drop checker

what is a good solution to use for a drop checker i made a d.i.y and not sure what to use i bought some distilled water and a ph test kit is that all i need or or do i need more
supergreeneye is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 12-03-2012, 01:45 AM
Moderator
 
Darkblade48's Avatar
 
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,006
To accurately estimate the levels of CO2 within your aquarium, you have to use a reference solution whereby bicarbonates are the only thing contributing to kH. Most people choose to use a 4 dkH reference solution, along with the pH indicator (bromothymol blue) that you already mentioned, as the indicator will turn green when there is about 30 ppm of CO2 in the water.

Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
post #3 of 14 (permalink) Old 12-03-2012, 03:14 AM Thread Starter
Planted Member
 
supergreeneye's Avatar
 
Join Date: Oct 2011
Location: las vegas
Posts: 272
is there a recipe that i could use or would it be easier to just buy it
supergreeneye is offline  
post #4 of 14 (permalink) Old 12-03-2012, 04:27 AM
Planted Tank Enthusiast
 
CAM6467's Avatar
 
Join Date: Feb 2009
Location: Alvarado, Texas
Posts: 593
It's a fairly simple solution to make. The catch is that you need to be able to measure fairly accurately...

Mix 6 grams of sodium bicarb (Baking Soda) into 1 liter of distilled water. You'll have a liter of 200 dKH solution. Now all you have to do is dilute the solution. Take 10 milliliters of the 200 dKH solution and mix that with 490 milliliters of distilled water. This gives you 500 milliliters of your 4 dKH reference solution. Of course, you'll need the pH indicator solution (bromthymol blue...i believe) to make it all work. Add the 4 dKH solution to your drop checker and put in a couple drops of the blue pH indicator stuff.

I've never had issues with this recipe. However, the fact that I am exposed to a bio-chemical laboratory on a daily basis helps.

Good luck to you!

"Success is not the goal, it's merely a byproduct!"
- The Fraternity of Dirt #66 -
Just because it's dirt doesn't make it low-tech.
CAM6467 is offline  
post #5 of 14 (permalink) Old 12-03-2012, 04:32 AM
Planted Tank Obsessed
 
Join Date: Oct 2012
Location: Frisco, TX
Posts: 348
Quote:
Originally Posted by CAM6467 View Post
It's a fairly simple solution to make. The catch is that you need to be able to measure fairly accurately...

Mix 6 grams of sodium bicarb (Baking Soda) into 1 liter of distilled water. You'll have a liter of 200 dKH solution. Now all you have to do is dilute the solution. Take 10 milliliters of the 200 dKH solution and mix that with 490 milliliters of distilled water. This gives you 500 milliliters of your 4 dKH reference solution. Of course, you'll need the pH indicator solution (bromthymol blue...i believe) to make it all work. Add the 4 dKH solution to your drop checker and put in a couple drops of the blue pH indicator stuff.

I've never had issues with this recipe. However, the fact that I am exposed to a bio-chemical laboratory on a daily basis helps.

Good luck to you!
Thanks for the recipe!
BriDroid is offline  
post #6 of 14 (permalink) Old 12-03-2012, 04:35 AM
Moderator
 
Darkblade48's Avatar
 
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,006
Quote:
Originally Posted by CAM6467 View Post
I've never had issues with this recipe. However, the fact that I am exposed to a bio-chemical laboratory on a daily basis helps.
You should be able to do it on a much smaller scale then

Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
post #7 of 14 (permalink) Old 12-03-2012, 05:07 AM Thread Starter
Planted Member
 
supergreeneye's Avatar
 
Join Date: Oct 2011
Location: las vegas
Posts: 272
Smile

Quote:
Originally Posted by CAM6467 View Post
It's a fairly simple solution to make. The catch is that you need to be able to measure fairly accurately...

Mix 6 grams of sodium bicarb (Baking Soda) into 1 liter of distilled water. You'll have a liter of 200 dKH solution. Now all you have to do is dilute the solution. Take 10 milliliters of the 200 dKH solution and mix that with 490 milliliters of distilled water. This gives you 500 milliliters of your 4 dKH reference solution. Of course, you'll need the pH indicator solution (bromthymol blue...i believe) to make it all work. Add the 4 dKH solution to your drop checker and put in a couple drops of the blue pH indicator stuff.

I've never had issues with this recipe. However, the fact that I am exposed to a bio-chemical laboratory on a daily basis helps.

Good luck to you!
im kinda a nubie at this whole co2 thing is there a simpler version or should i just buy the stuff online for 5 bucks i have a rather small tank thankx though
supergreeneye is offline  
post #8 of 14 (permalink) Old 12-03-2012, 06:16 AM
Planted Tank Guru
 
xmas_one's Avatar
 
Join Date: Feb 2010
Location: Long Beach, CA
Posts: 3,335
Just buy it. It's cheap enough that you don't need to play around making it.
xmas_one is offline  
post #9 of 14 (permalink) Old 12-03-2012, 08:05 PM Thread Starter
Planted Member
 
supergreeneye's Avatar
 
Join Date: Oct 2011
Location: las vegas
Posts: 272
yah thats probably what im gonna do i dont think i can find it at petco so ill probably order it online
supergreeneye is offline  
post #10 of 14 (permalink) Old 12-05-2012, 03:27 AM
Planted Tank Enthusiast
 
CAM6467's Avatar
 
Join Date: Feb 2009
Location: Alvarado, Texas
Posts: 593
Quote:
Originally Posted by Darkblade48 View Post
You should be able to do it on a much smaller scale then
Good point! I guess that I'll never have to worry about making that particular solution again, though.

"Success is not the goal, it's merely a byproduct!"
- The Fraternity of Dirt #66 -
Just because it's dirt doesn't make it low-tech.
CAM6467 is offline  
post #11 of 14 (permalink) Old 12-05-2012, 03:39 AM
Algae Grower
 
Join Date: Sep 2012
Location: Boston, MA
Posts: 40
Quote:
Originally Posted by CAM6467 View Post
It's a fairly simple solution to make. The catch is that you need to be able to measure fairly accurately...

Mix 6 grams of sodium bicarb (Baking Soda) into 1 liter of distilled water. You'll have a liter of 200 dKH solution. Now all you have to do is dilute the solution. Take 10 milliliters of the 200 dKH solution and mix that with 490 milliliters of distilled water. This gives you 500 milliliters of your 4 dKH reference solution. Of course, you'll need the pH indicator solution (bromthymol blue...i believe) to make it all work. Add the 4 dKH solution to your drop checker and put in a couple drops of the blue pH indicator stuff.

I've never had issues with this recipe. However, the fact that I am exposed to a bio-chemical laboratory on a daily basis helps.

Good luck to you!
How much bromthymol blue would I need to add to the solution? I think I may have access to all of this in my pharmaceuticals lab.

Sent from my SAMSUNG-SGH-I717 using Tapatalk 2

biggerbang is offline  
post #12 of 14 (permalink) Old 12-05-2012, 04:28 AM
Planted Tank Guru
 
Join Date: Jul 2010
Location: Oregon
Posts: 2,779
4-5 drops
nilocg is online now  
post #13 of 14 (permalink) Old 12-05-2012, 04:30 AM
Algae Grower
 
Join Date: Oct 2009
Location: Phila Suburbs
Posts: 132
Got my 4dkh solution on Ebay - $7.50 shipped for a bottle that will probably last forever.
watercage is offline  
post #14 of 14 (permalink) Old 12-05-2012, 04:42 AM
Moderator
 
Darkblade48's Avatar
 
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,006
Quote:
Originally Posted by biggerbang View Post
How much bromthymol blue would I need to add to the solution? I think I may have access to all of this in my pharmaceuticals lab.

Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
It doesn't matter how many drops you add. Add enough so that the colour is easy to see, but not so much that the solution is opaque.

4-5 drops is usually enough, as nilocg mentioned.

Anthony

A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome