Drop Checker Kit, Standard

Standard CO2 Drop Cheker Kit with 4.2dKH Indicator Solution

4.2 dKH indicator solution is ideal for measuring normal and low range CO2 levels.  The 4.2 dKH solution appears green in color at CO2 ranges between 25-30ppm which is ideal for most planted aquariums. 

The Standard and Dual CO2 Drop Checker Kits are used to measure CO2 levels in planted aquariums and fish tanks with live plants. The kits work by changing color as CO2 levels rise and fall.

Too much dissolved CO2 can be harmful for fish and livestock. With this kit aquarists can accurately measure optimal CO2 levels that promote plant growth while helping to keep fish safe.

Green color indicates between 25-30 ppm for 4.2 dKH solution  (and 50-60 ppm  for 8.4 dKH solution)

Blue color indicates lower levels of CO2; CO2 injection can be increased gradually until the indicator solution turns green.

Yellow indicates high levels of CO2 that can be harmful to livestock, if the solution is yellow lower the CO2 injection and check the solution every few hours until the color is green.