Don't use tea on seedlings... use in soil after plants mature... and are established.
Homemade tea can be pretty funky... needs a buffer and/or a strong plant to absorb imperfections in the brew..
depends on size and demands of plants. You should be fine if your reservoir is somewhat fresh. Dont fear, plants will bounce back, and (a little) stress is often not a bad thing. Cheers!
So, here is the link to the WSJ article from today http://online.wsj.com/article/SB10001424127887323716304578480883218514720.html?mod=WSJ_hps_MIDDLENexttoWhatsNewsFifth
It may require a subscription to view. Those who can't view please email me with your address and I can send you a link via...