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Hard to tell going off the description. It is suggesting adding aquarium water after the drops of fluid (Which is a bad idea as it will measure any acids in the aquarium water and give false readings) So I would say that you only have the ph indicator and not the 4dkh fluid. Also the ph...

You need to find out if your DC fluid is pre-mixed 4dkh with Bromo blue ph indicator. If you are just using Bromo blue then no, it needs to be in a 4dkh solution to be working properly.

This was the conversation I was referring to.

Not sure where that was heading. I asked the same question a while back. There was a device made a while back which had a digital monitor but it only measured co2 levels, someone made one after people chipped in on one of those sites where people put money towards it and someone builds it. The...

You're just teasing now :D

Intriguing! Will be watching how this develops. Always good to read back through these stickies. I often find something I thought I understood and actually didn't :) I'm considering adding an airstone on a timer to come on an hour or so after lights off until the morning now it's been...