Bottom third or so of the pot is lava rock or pea gravel for smaller items keeping the peat/sand mix just above the water line where it will still wick it up just fine. |
Main idea here is: do not put any un or under decomposed organic matter underwater!
I'll make the switch to sand and peat with a botom layer of turface. I do have some micronized iron hanging around and might try that in a couple of pots. My existing set up has the soil filled pots with soil under the water. It seems to be working - only been a few weeks but getting new leaves and growth. Is the problem with organic matter under water one of going anaerobic or is it something else?