Aeroponic Lettuce

I've been growing these (Redleaf & Butterhead) lettuce heads for a month or so now from seed. Seems to be working out pretty good. Idk how to harvest them though to reveg them...yet.
The water is clean, Ph'd 6.0 and sprays for 60 seconds of every 10 minutes.
Heres the pics I got so far...
Questions or advise would be great.

More pics...

Looks like you need to stock up on dressing, go with the blue cheese.

They look a bit small do they get real sun or a lil of both?

PinchedNerve said:

They look a bit small do they get real sun or a lil of both?

Click to expand...

Thats a 50gal reservoir btw...
They're grown out on the deck in full almost sun. The second post was younger pics the first post was the newest pics a couple days ago. They're full heads now with the Butterhead being about 8-9 inches round. And the Redleaf heads are about 12-14 inches round. They took about 4 weeks to grow from seed.

Those look like they are getting plenty of sun to me, nice job.