Home made liquid feed for tomatoes?

I'm looking for some ideas for home made liquid feeds for tomato plants.  I have started an experiment to see which home made feed will produce the best results

I don't have access to any comfrey, however I'm willing to try any suggestion people may have.

Cheers

Richard

 I do make nettle tea for the toms but I also, at planting out in beds or grow bags put a handfull of nettle tops in the bottom of the planting hole just before planting the tomato  plant in it.

I make a seaweed feed for my toms which is very effective but see the sticky on collecting seaweed before you go ahead.

I use either comfrey tea or manure tea.

Just soak some manure in a bin for a few weeks and the resultant smelly brown water is great.
Dilute  25/75