peat pellets and rockwool are COMPLETELY different. just google "rockwool wiki" and get a pretty good understanding.
peat pellets are as the name implies made of composted/dried peat moss. which makes them ideal for rooting because they retain a good mix of air/moisture. watering lightly once a day, just enough to keep her moist is all she will require. once roots poke through the netting that holds them together, you're ready for transplant. tried to find a video on their production, but couldn't :/ sorry!
rockwool on the other hand (pain in the ass IMO) is made from molten rock which is spun like cotton candy, into a sort of "wool" (rockwool, clever name!! lol) this makes them awesome for rooting. just imagine cotton candy, with all the air pockets and fibers closely knit together. now imagine if that cotton candy could retain moisture in those pockets without dissolving. creates a great root zone. i say they are a pain because you have to soak them over night to balance the pH (jiffy/peat pellets just soak em till they expand and they are good to go)
if you can understand what language they are speaking... this is how its made lol (by the way, this is for building insulation. but process is no different... i believe, some will correct me if i'm wrong. i'm sure of that!)
[youtube]ZAzhswc5aGk[/youtube]
also from a permaculture perspective, rockwool aren't very ecofriendly, i believe there are two companies producing them, both european so they have to be shipped (not eco-friendly) and they are made for one type of rock (not sure what it is) and its only found in a small handful of places.
then again, peat moss used for making peat pellets (and for peat moss used in gardening to enrich soils) is harvested out of somewhere in canada. so again big shipping/fuel costs and sort of non renewable. the amount peat moss needed to make a pellet is ridiculous and the stuff grows SLOOOOOW!!
neither factor really bothers me much. lmao. but because rockwool has to be soaked and pH balanced. i say go with the peat pellets!
Shack
PS show your face in the new thread!