What are the most cost effect nutrients for lettuce?

[travis_lex]

Originally Posted by Rkfm

I use General Hydro Maxigrow. It's cheap (I think I got my 2lb bag for $15). At the rate I'm using it (5gal res for 18 plants in an nft system) it'll last me probably almost a year, if not more.

Glad to hear that! There is quite a range of hydro nutrients to pick from, but eventually I chose the GH Maxi series for my first real effort at a hydro project.

It's always good to know there are others out there using the same, will keep posting as this progresses.