I still only use it at half strength, but I haven't used it in months. I didn't use it this last grow at all. Doing the lazy man's dirt thing for the first time. My moms grow too fast already, so I don't want to encourage them. Haven't tried it on seelings. I only mix up what I think I'll use each time. I usually end up dumping a little, which of course makes it even more expensive than it already is.