Flasks to S/H

[Undergrounder]

Much better in perlite, compared to bark or sphagnum. In fact perlite probably wicks better than LECA... i do add extra holes to the sides of the pot to add more air, as perlite is generally smaller and doesn't hold as much air between it like LECA does. I would reccommend LECA for full-grown plants definitely, but perlite for seedlings.

Perlite also has its problems, dust (which can damage leaves if it sticks to them), slight compaction over a long period of time and algae growth seem to be the main ones. If there is a smaller grade LECA ball then i'd use that, but perlite for my needs works fine.