It’s a fast start, seeds germinated in a day. No lid on top of this tray but water is pumping on average 15 minutes each hour; enough to keep wet between cycles, especially with the humidity we’ve had in ATL this month. I’ve tested growing micro greens and wheat grass using trays that just barely get whetted with each flood. Not so much that the seeds move but enough to keep everything moist. Seen others doing micro greens with hydroponics but not aquaponics. We’re adding worms to the beds, which are shallow (moreso than this setup) to simplify the waste filtering process (no mechanical filtering) to keep soil-less beds aerated and decomposed of excess organic matter. Plus they’re adding lots of beneficial organisms and growth factors. More on VermaPonics coming soon.