Tomatoe feed?

maybe... it has npk, but no info on secondary or trace elements. (check out me leaf symptom chart in week 3 of GGxWW with more weeks/current grow. "save image as.." if you want it, but also shows you all the nutes you need to provide. now, if in soil, some of that will be there... tap water has some too (Ca / Fe / Cl, for example) So, it's a coplicated question. Start off with it if you want, but then keep a close eye on the plant -- the leaf symptom chart will help with that.. ILGM has a symptom checker that does a good job too. No matter what you pick, you'll have some trial and error to get it 'perfect' or good enough etc... Look up calculating ppm from a liquid feed and % given.. if ppms aren't too high it won't kill anything. tomatos are generally a good parrallel to go by, if not mistaken. Check out my ppm spreadsheet in week 5 or 6 of same diary... also, youtube has some excellent videos on fertilization. Rollitup.com forums are another excellent source for information in this regard -- even if from 2009.