yesterday I was playing around with the CO2 outlets etc to get a better current/flow. To do so I removed the pH meter from the tank and put in in glass of tapwater (pH 8.0). After a while, I placed the pH meter back in the water and the pH was 6.14! normally the pH is 6.30 and the CO2 level is 40 mg/l. I didn't measure the CO2 level at that pH, but it must be around much higher than 40 mg/l (50?). but yet, the fish didn't go to the surfaceor showed any discomfort during the time. So I am now really wondering what the upper limit of CO2 is for fish and also my amano shrimps. For sure I do not want to kill them...
Did anyone do some experiments?
greets,
yme
Did anyone do some experiments?
greets,
yme