I have a GLA drop checker, with the indicator solution. http://greenleafaquariums.com/products/ ... ecker.html
A couple of questions
1. Is it essential for my indicator solution on a daily basis to reach the maximum saturation (C02)?
. It seems like I have to really crank up the C02 for this to happen in my 55 gallog tank?
2. Do I ever need to replace the reference and indicator solutions in the drop checker?
The Drop Checker – Regardless of whether you decide to use a pH Controller or a timer, it’s always a good idea to use a drop checker to monitor and fine tune CO2 levels. The drop checker is a glass reservoir designed to contain an indicator solution with a known KH (Carbonate Hardness). When submerged, carbon dioxide in the aquarium is absorbed into the indicator solution, until a point of equilibrium is reached between the aquarium water and the solution. As CO2 gas is absorbed into the indicator solution, it lowers the pH of the solution, which in turn changes the solution color. This color, when compared against a pH color chart, allows you to gain an accurate perspective of the concentration of CO2 in the aquarium.