>> And they're bottomless, so I've been constantly bottom watering with capillary matting.
Gee, doesn't the mix fall out if you lift or move the tray?
I found that fuzzy cotton flannel seems to bottom-water pretty-OK even through relatively small holes in a 128-cell plug tray (8 cells x 16 row).
"Trays are 13-7/8" L x 8-1/2" W "
Hmm! They wouldn't fit neatly into a 1020 tray.
