Hmmm Bertox is an EQ named mob is it not? You say you are running lights at 18/6 but using Bloom, are u veggin or flowering? Also the white calcium looking stuff is most likely a salt residue, possibly from the Rockwool. Do you flush on a normal basis?
tinytoon Reviewed by tinytoon on . Re-occuring tip burn/WALL of text H=Hydro R=RockWool in Geolite D=Ebb and Flow system, 4 times a day for 30 minutes at a time E= EVERYONE needs to answer lol! E-indoor (grow tent) E-hydroponic E-Rockwool cubes planted in 1 gallon bags with geolite CSL-Geolite Rating: 5