Jack's Nutrients 7-15-30 Finish, 1kg, 2.2lb hydroponics Designed for operation on 315W

Designed for operation on 315W low frequency square wave ceramic metal halide ballasts

and plants – 100% Non-Toxic

Increases yields (See below References 1 & 2)

One pull cord allows you to set the desired speed or turn the fan on/off

Repeated washes and buffering are applied to achieve extra-low ppm/EC levels

Jack's Nutrients 7-15-30 Finish, 1kg, 2.2lb hydroponics Designed for operation on 315WYou've always been told to finish strong. This formula is ideally formulated for this purpose to provide your plants with a very low nitrogen, high phosphorus and very high potassium content to keep the whole plant happy to the end of its crop cycle.