a known KH is needed to measure CO2 in the aquarium
(for use in drop checkers)
Products_______Drop Checkers_______Shipping_______To Purchase _______Links
all standardards are made using:
a lab certified analytical standard
and diluted using:
precision grade, class "A" glassware
Products:
250 ml bottle of 4 dKH Standard ----------- $7.49
250 ml bottle of 5 dKH Standard ----------- $7.49
250 ml bottle of ? dKH Standard available by request
Drop Checkers:
A recent trend in the planted tank community is the use of "drop checkers" to monitor CO2 levels in the 
aqaurium.With a drop checker you can accurately measure the CO2 levels in the aquarium and you have a continuous CO2 reading - no more guessing.
To measure CO2 in the aquarium you need to have an accurate measurement of KH and pH. Test kits are available to measure CO2 but they aren't accurate because phosphates and ions in the water cause false KH and pH readings.
When using a drop checker you don't need to measure the KH or pH. The KH in the drop checker is already aknown value (this is the reason for an accurate KH Standard) and the pH is measured in the drop checker. The drop checker has pH indicating solution in it , so by observing the color of the solution in the drop checker you will know the CO2 level of the aquarium water.
After light carbon (CO2 is a carbon source) is the next primary need of aquatic plants, low carbon is one of the main causes of algae and poor plant growth. Having proper CO2 levels is one of the most important factors for aquatic plant health. A drop checker is a great tool for monitoring and maintaining CO2 levels in the aquarium.
Links:
A lot of great research and work has been done on the subject of drop checkers. For more information see the links below.
http://www.barrreport.com/articles/2661-drop-checkers-co2-indicators-why-how.html?highlight=drop+checker
http://www.barrreport.com/co2-aquatic-plant-fertilization/2289-old-co2-idea-good-new-idea.html
http://www.aquaticplantcentral.com/forumapc/do-it-yourself/32100-diy-drop-checker.html
Shipping:
Continental US:
$5.49 / for 1 bottle $7.00 / for 2 to 4 bottles
Canada:
$5.49 / for 1 bottle / 10 to 20 days
***the following options are available for Canadian shipments but you will need
to contact us ahead of time to make shipping arrangements / shipping@liquidarthome.net***
$18.00 / for 1 bottle / 6 to 10 days
$24.00 / for 2 to 4 bottles / 6 to 10 days
Outside of Continental US and Canada:
Please email us for a shipping price quote
To Purchase :
To go to the Shopping Cart click - here
Contact us:
If you have any questions please e-mail us at
info@liquidarthome.net