Mary, what you are seeing is Jiffy seed starting mix. There is no soil in it and right Mary, no perlite. I start with Jiffy 7 pellets and then pot up with the mix. I always remove the netting before potting up. I fertilize with a weak solution of Fish Emulsion when they get their second leaves. When I pot up I start giving them a weak solution of Fish and Kelp. When they go into the ground I foliar feed full strength fish and kelp once a week. So far, the tomatoes I have are: Italian Market Wonder, Thessaloniki, Black from Tula, Costoluto Genovese, Calabash, Sun Leaper, Brandywine, Mexicana, Cour di Bue, Homestead, Peron, Oaxacan, Zapotec and Yellow Pear.