Medium is Pro Mix BX, with 30-40% perlite added. I'm planning on feeding them 3 mL/gallon FloraNova Bloom every 2-4 days, which is about 1/3 strength of each full dose of Lucas Formula. I've been having nute problems this grow because I was feeding in pro mix like it's soil (bad mag deficiencies) so I want to get a good, precise regimen down for the next crop. Any feedback is greatly appreciated