Name: Anne Summerville, SC (Zone 8a) Only dead fish go with the flow!
Keeping things off the ground helps with keeping the ants from moving into the pots and also helps with air circulation.. for the main greenhouse I made what I call "plant decks" which does the same thing. If you haven't thought of it already, fans are really necessary to help with high humidity and also slows down the algae growth. My fans are on timers and go on at 5pm til 10am the next day.
I also use the 'decks' outside during the growing season as it discourages the ants too.
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