Joined
·
581 Posts
I bought a Red Sea CO2 drop checker and followed the instructions by putting 1 ml of aquarium water in the cup and two drops of the solution. The stuff pretty much stays the same color whether in or out of the aquarium for any extended period of time. Is it possible the solution is bad?
Here is a pic of it and that is the color it stays regardless
Here is a pic of it and that is the color it stays regardless
