Grodan Delta Blocks (216 Box) - 100mm x 100 x 65 (4") Big Hole (23129) Shipping The original 3-part advanced nutrient

The original 3-part advanced nutrient system for hydroponics

fresh or sea water pump ( doulbe use multi function ) suitable for fountains

density and quality

clean scent that lasts longer and eliminates odors instead of masking them

Boxes can be nested or stacked by rotating the box by 180 degrees

Grodan Delta Blocks (216 Box) - 100mm x 100 x 65 (4") Big Hole (23129) Shipping The original 3-part advanced nutrientGrodan Delta Blocks planting on blocks Once seeds or cuttings are rooted in a propagation cube, transplant them to a Grodan Delta Block. 3 and 4 blocks are ideal for use in NFT, slab culture, dripper or Ebb & Flood systems. 6 Hugo cube can be used for deep Ebb & Flood tables or passive pot culture.