If you are questioning if your tube is out of a gas then we recommend running the Default recipe in the dark. This recipe will light up all the tubes. There will be 3 brighter gases and 3 dimmer gases:
Bright: Neon, HE, HG/I
- These spectrum tubes will be really bright when running the BioCharger
Dim: Ar, Xe, Kr
- These spectrum tubes are normally dim when running the BioCharger
As long as there is light coming out that tube is still working. When you don't see it lighting up at all then it is time to purchase a new tube.
Only replace when you don't see anything coming out, they all don't need to be replaced at the same time.
Website link to purchase individual, set of 6 or 12 tubes:
https://biocharger.com/product-category/parts/