Hi, I have used Consan Triple Action 20 for a number of years on seedlings. It is not necessary for all seedlings, but I do use it for seeds that I'm germinating indoors under lights, or for seeds that need very high humidity for weeks in order to germinate (cacti, some bulbs, etc.). I use Consan in conjunction with typical precautions one might take with prized seed: baked soil components, seed free of chaff, etc. When I plant the seeds I water them in with 400 ppm Consan (1 tablespoon/gallon). Later, I typically mist the seeds/seedlings with a 200 ppm solution of Consan; I do this as long as they stay in high humidity conditions or low air movement situations (under lights). Consan is a solution of 3 similar quaternary amines, very similar to they type of surface disinfectant used in hospitals to wipe down bathrooms, door handles, etc. It has low toxicity for birds, reptiles, and mammals. Additionally, it degrades very quickly once in contact with soil, and probably is completely degraded in 2-3 days at room temperature. For me, the results are always good--essentially no damping off and I never have damping off problems. A few times I did my dilutions incorrectly and used Consan at 4,000 ppm, and I never observed any phytotoxicity. A few days ago someone on this list (I think this list) mentioned they use Consan. I didn't think about it at the time but I seem to recall they use 20 ppm. Does anyone use Consan at concentrations less than 200 ppm? Does it give good results? I'm always willing to use less of everything and I'd enjoy hearing other experiences with Consan. Also, does anyone apply it concurrent with fertilizer? Sometimes I mix it up with one tenth-strength MiracleGro (generic brand) and apply the mix to seedlings. Cordially,