I NEED HELP! I am new at planted aquariums and it is not going very smoothly. I need some info on bubble counters. First, is the water supposed to evaporate out of them? With the aqua medic one I have the water disappears quickly so I can't check the bubbles. Since I am trying to get my parameters with my co2 established I need to count bubbles. The lid is so hard to get on and off that I have already broke 2 of them. One trying to get it on and the other trying to get it off. Is there an easier way to accomplish this? Am I doing something wrong? Should you have to replace the water weekly? Any help would be greatly appreciated.