New Grower Hempy Buckets

[gearbear]

It could keep the compost too moist and cause mold/mildew/algea at surface. I'd suggest using finding a piece of plastic or even plastic bag to set on top if you are trying to hold in moisture.

 

[Blueberries]

Roots need to breathe and if they're completely surrounded by water, they'll drown - hence the need for airstones with what you are doing. Reason why the roots don't drown in a hempy bucket is because the medium has air trapped in & around it.