co2 drop checker question
I just purchased a GLA co2 system with an oracle drop checker. theory behind this is by color. blue is low co2. green is the targeted area and yellow is too much co2. The amount of co2 is relative to the amount of plants in a tank. how does a drop checker know how many plants are in a tank?
scenario one - co2 system with a drop checker, dc is in the green and I have one single plant.
scenario two - co2 system with a drop checker, dc is in the green and I have just say 50 plants.