Making progress

My nutrient test is coming along nicely, and the lettuce seedlings have made progress in the last week.

The TDS in this system is about 1200, and I can see an increased growth rate following the move from the starter stage system with the TDS at 375.

This systems contains: Deer's tongue, Brune D'Hiver, Gentilina and Sanguine Ameliore, all of which are heirloom varieties. The plants are entering the vegetative stage and growth should continue rapidly from this point on.