Hey guys im in the midst of making my Hydro setup for the first time. I started to germinate the seeds but i have yet to find the rockwool before the first one popped. Is there another alternitve to rockwool that i can find at a home depot walmart or lowes? Ill have about 2-3 plants and using the method where the roots are completely submerged with a water pump and airstone in the water supply itself. ANy help would be appreciated.
NJB