meadeam Posted November 9, 2021 Share Posted November 9, 2021 (edited) A couple things I learned and hopefully can save someone else the trouble: The more you fuss with the needle valve, the more you perpetuate the pressure differences between the bottles, and the more 'A' solution siphons to the 'B' solution, causing more reaction, which increases pressure, which means you need to mess with the needle valve... etc. I built up nearly 4 bar of pressure trying to adjust the flow before I realized I was making it worse by constantly messing with the needle. It's easier than I thought to reach CO2 saturation; I achieved a full 1 pH drop on the morning of my second day of C02 (I turned it off over night) and eventually had to take the diffuser out of the tank (29g) as my tetras were all clinging to the top surface of the water. The drop checker started the morning blue eventually went all the way to greenish-yellow but the fish started stressing when it was green(they are fine now) and I should have been around 30ppm C02 according to pH drop at my kH. I've ordered a solenoid with a bubble counter and will use the magnetic valve to turn on/off so as to not have to mess with the needle valve constantly which causes an over-reaction. Edited November 9, 2021 by meadeam 2 Link to comment Share on other sites More sharing options...
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