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kakashibatosi
04-23-2009, 08:48 PM
I'm beginning to build my first hydroponics system and want to know what to use to start my seeds. I hear rockwool is good for starting seeds, but how to I transition from it? I heard it stays too wet and isn't good for roots after initial growth. Suggestions?

PS - I'm planning on using expanded clay as medium after rockwool.

willard3
04-24-2009, 07:41 AM
Rockwool is the perfect medium for holding air/water in the right ratio.

Leave the germinated plant in rockwool and plant rockwool w/plant in expanded clay.