Red Sea CO2 Indicator now at Ken's.

[andyjh]

Just thought I'd pass along the fact that www.kensfish.com now carries the Red Sea CO2 indicator. Just picked one up and can't wait to try it out. The only thing I've got to do now is figure out the best recipe to make some 4dKH solution for accuracy of the device. The unit itself is pretty small and looks like it could easily be hidden along a tank wall. Anyone know a good 4dKH solution recipe?
TIA
Andy

 

[andyjh]

Meant to add the product photo so you'd know what I'm talking about.

 

[Izzy2]

Quoting Ray-the-Pilot: To make 4 deg. KH water dissolve 1.2 gr. NaHCO3 (ordinary baking soda) in 500 ml of distilled water. Then take 5 mls (1 teaspoon) and dilute that with 100 ml of distilled water.

 

[dundadundun]

or if you don't have a 1/10 gram scale...

 

[mott]

or if you don't have a 1/10 gram scale...
View attachment 120188

Nice find, I'll have to try this! Thanks