Grodan Crop Box Slab - 370 x 550 x 150mm 5 Inch Ventilation Fully waterproof

Fully waterproof

Although we do not recommend BioBizz products for a recirculating hydroponic system some customers find sucess using it in hydroponics

LEDs: 1152 x Top-Bin Samsung LM301B diodes

P and K in a single bottle to feed your plants with less nitrogen and more potash to maximise flowering in the later stages of growth

Grodan Crop Box Slab - 370 x 550 x 150mm 5 Inch Ventilation Fully waterproofGrodan Crop Box Rockwool Slab 370 x 550 x 150mm 1X Grodan Rockwool Crop Box Slap Wrapped 37 X 55 X 15cm Thanks to their revolutionary hydrophilic fibres, Grodan substrate slabs and blocks produced using this technology offer users considerable advantages over other propagation substrates. Tried and proven to be the best propagation substrate available.