im looking for this too, since i actually don't have a timer to switch on/off the lights. Seeing my friend turning the knob every morning on his 2FT tank seems a hassle compared to on/off with just a small metal knob.





im looking for this too, since i actually don't have a timer to switch on/off the lights. Seeing my friend turning the knob every morning on his 2FT tank seems a hassle compared to on/off with just a small metal knob.






koah fong
Juggler's tanks






You should get a timer for your lights to save the hassle.
If you want to automate your CO2 on/off, then you can get a solenoid like in the picture. It connects to your timer so it turns on/off on schedule.
Photo by ranmasatome
Anyway, I haven't got a solenoid. I slowly adjust the Co2 bubble to a comfortable level and leave it there running 24hrs.
koah fong
Juggler's tanks
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