My mates dog has a problem.
His setup
5 chronic in large 4 pot wilma, 1 Mother for clones.
GHE nutes 1.6 ec
Ph 6.0
Co2 750ppm
1x600 sunmaster sodium
1x300 red florry
1 airstone
1 mix pump, 1 heater......temps 86
His plants have been 12/12 for 4 weeks they are about 5 ft high and 3 ft wide give...