Planted Tank Guru
Join Date: Mar 2008
Location: Phoenix, Arizona
Mixing 4dKH Solution and Bromothymol Solution in the Drop Checker
Mixing 4dKH and Bromothymol Solutions for the CO2 Drop Checker
How much mL of 4dKH and number of bromothymol solution drops do you mix to put inside the CO2 drop checker? Some kits say - use 3 to 5 drops of bromothymol solution, other kits say 5 drops or until the color of the 4dKH solution turns blue. The blue color can range from light blue to dark blue depending on the number of bromothymol drops is used. The kits also say to fill the drop checker half full. Does it matter if the drop checker is filled 3/4 full or 1/3 full?
What's your comment on these varied directions? Thank you.
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Last edited by Crispino L Ramos; 03-26-2010 at 03:15 AM.