zem
Well-Known Member
so as the title says, which is the most suitable medium to grow hydroponically and commercially to start for example a tomato, strawberry, cucumber or so farm? it has to be economical and not too labor intensive. I looked into expanded clay, perlite, rockwool, gravel, coconut coir, coco, and many more. they are either expensive, or too heavy hard to deal with. I am leaning for expanded clay pellets as they are recyclable, but their cost is quite high making the initial investment to buy them a bigger risk. but they live for very very long can be reused indefinitely. what do commercial farmers use?