NUTRICULTURE - NFT GRO-TANK KIT 090 - 70L - 90x90x30cmGro Tank 090 NFT GN090E Tank 70L Dimension 90x90x30cm Number of plants: 4 9 Nutsystems Gro Tanks give roots virtually unrestricted access to oxygen. Yields are typically 3x bigger than if growing in pots. Plants are placed in rockwool blocks and the roots grow along the planting channel benefiting from superb access to oxygen. Nutrient solution is constantly pumped to the roots, theres no timer to programme. Because virtually no growing medium is used