hey...my buddy has a grow with 12 plants ...consisting of 5 ww 4 grapefruit and 3 different stains of bag seed weed...he is going into week 9 of flower and was gonna change over to plain water and then the last 4 days b4 harvest water and flora clean...problem is ,2 of the ww looks really ripe and damn near finished and 3 are growing like crazy and getting bigger....same for 3 of the grapefruit ...and 1 of the bag weed seed...what should he do....??..its all in a 4x4 foot flood table with a 40 gal res. currently running 1200 ppm of flora-nova bloom....
That's one big problem with growing different strains in a single hydro system -- different maturity times. Check the trichomes under magnification to verify when the plants are nearing harvest time. Otherwise I'll have to leave it to hydro growers to steer you because you do want to flush those ready for harvest but keep feeding those that aren't.