First week!
which means nothing happens, i water the plants with tab water and thats it :D
according to the city my tab water should have
EC 0,27
Ph 7,8
dGH, °dH 9,0
however i measure
EC 0,44
Ph 7,6
which is still fine i gues=)
@ArthurStotch,
not unusual at all in europe
those bulbs have the right specs and are super cheap (2$ a pc)
of course i only use them for vegi, for flowering i use a 600 W HPS light :D