Is one type of rockwool system (eg., ebb& flood) better than another?
As long as appropriate air/water ratios, fertilizer concentration, EC, pH and any other critical factors are maintained properly, the actual means of irrigating the plants does not matter. More appropriately care should be taken to choose the correct rockwool product (slab, block, BAB-12, Baby Leach) and size for the system. Commercial growers favor drip irrigation with growing blocks on top of slabs for tomatoes, peppers and cucumbers while lettuce, strawberries and many herbs are produced in NFT, water-table, ebb & flood and other systems set up for their specific growing conditions.
