Sand Experiment Update

Started to notice some yellowing in the leaves of the basil and tomatoes, so I'm guessing that I've run out of useful nutrients. I guess I made it about 10 days.

I'm going to supplement the nutrients as I would a normal hydroponic setup to see if a twice per day flood is adequate for the plants.

I'll be moving the first week of August, so my experiment doesn't have too much longer to run. It's a race against time to see if I can get some harvestable cilantro before I have to dump all of my sand/gravel for the move.