What's your table size? 4x4 should be 40 gal, 2x4 should be 25.
You can flood n drain RW. You MUST pre-set the pH of the slab FIRST before adding plants!!! The flood cycles will be less frequent than a more porous medium like hydroton. Personally, I prefer HT for flood n drain and coco for drip, but if you already bought your RW slab, then get your table set up ASAP so you can get the pH adjusted while the seedlings are rooting.
stinkyattic Reviewed by stinkyattic on . Rockwool flood n drain? quick setup plan guide: 3 x 600 w over 30 sq. feet flood and drain on tables well ventilated starting under 75w seeds and cuttings purPle light flourescent hi there, my problem is im starting seeds in rockwool and sent a friend to the shop for me to buy some tubing and connecters, but all he got was tubing and forgot the drippers, so i was wondering if they'd be ok just watering them by flowing it in briefly a few times a day or does it have to be dripped? if dripped then on a Rating: 5