This is the "Salad Bowl" variety:
And the "Butterhead" variety:
Maybe it's just the fact that they are single plants, but the plants in the rafts don't seem to be doing as well.
Butterhead variety
Salad Bowl variety
I think the raft plants will probably benefit from an added air supply. I'm hoping to get something fixed up early this coming week.
This is an individual Butterhead variety plant in gravel, for comparison.
This Salad Bowl variety plant in the raft is doing pretty well. About half of them look like this and half are smaller.
suspended solids attach them self to the root and chock the plants in small medium-less aquaponic systems, to remedy this use a panty hose to filter the water just before it enters that grow tray but make sure the incoming water is still dropping/airaiting the the grow bed
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