drop checker colour

[widow-maker]

Would anyone please give me advice if this is the colour drop checker i should be looking for please? thanks

 

[GHNelson]

CO2 MEASUREMENT USING A DROP CHECKER

CO2 application is the most finicky and ethereal component of all the things associated with a planted tank. In a high tech tank, it is arguably the most critical item and is the cause for more headaches than any other issue. This is because unlike solid powders or liquid drops, which typically...

www.ukaps.org

The first image shows a good target color for the checker, lime green. The second image shows an example of what it looks like when there is too much CO2:

Too much below!

 

[Wookii]

Would anyone please give me advice if this is the colour drop checker i should be looking for please? thanks

Looks spot on to me - just make sure you try the drop checker on all areas of the tank to ensure you get the same result.