I am not a rockwool grower. Rock wool cubes need to be soaked in a solution overnight. They have a ph of their own, very alkaline. You have to do this first or your plants will not surivive. There are alot of posts detailing what to do.

I germinate my seeds in soil and transplant them after they have sprouted.

Good luck.
Gen Reviewed by Gen on . NFT HELP IVE JUST BOUGHT A NFT SET UP AND THATS ALL SET UP AND READY TO GO. THE ONLY THING IM NOT SHORE OF IS HOW TO GERMINATE MY SEEDS IN THE FIRST PLACE. IM GOING TO GROW IN ROCK WOOL CUBES SO DO I JUST PUT THE SEED IN TO THE CUBE, PLACE IT ON THE NFT TRAY UNDER THE LIGHTS AND WAIT TILL THEY GROW. OR IS THAT ALL WRONG................ ANY COMMENTS AND ANY TIPS ON GROWING IN A NFT (NUTRIENT FILM TECHNIQUE) WOULD BE HANDY AS IM ONLY A FIRST TIME GROWER Rating: 5