THC Android app works with a database on Internet, where all the fertilization schedules of each vendor are stored.

It is constantly updated and augmented with new partners. If you notice a wrong value or any problem for a given liquid, please contact us and we will fix it. it will be automatically corrected for all the THC users, that are using this liquid.

you can consult the list of vendors currently in the database here (sorry for the moment the result is in JSON, but you can read it's ok)