hi.
sorry for the 3 year late reply, but just posting it here for info.
i DIY an auto doser to dose ferts.
bought 12V adapter, digital timer accurate to the minute, and peristaltic pump, 2 of each.
total cost was about 50 to 60.
but spent quite some time setting it up, plus having tools at my work place saved me a little money, as i had to make a stand for the pumps and adapters.
started running it for a few days so far, accidentally overdosed my tank with micros twice so far -_-
in hindsight, buying a pre made auto doser like the one jebao sells is a wiser choice. saves me some time, fustration and anxiety of overdose.
also, i realised that having 3 pumps instead of 2 may be better, to avoid some chemicals mixing together and precipitating.
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