I have been tweaking this DIY this method for 3 grows It combines shallow bubbler with seedlings/clones in 3-6" net pots I use air stone discs as they provide low height = minimal water volume + large surface area for bubbles I use polished ornamental stones from Dollar Store First I put down a layer of SMALL stones inside each net pot then insert the starter cube, carefully adding stones around it to stabilize the starter cube so as not to damage the delicate stems Net pots are placed on a plastic grid which rests on air stone discs Water level is important so as not to soak the cubes I had to double net pot adding more stones to effectively raise the cubes higher so they wouldn't soak the developing roots, but removing the water would also work This morning i took 2 clones and put them in as well. Note the green onion and mint clones First Bubble Bath pic is from 1/23
Day 6 Update Seedlings & Clones It's crowded in the bubble bath Notice the bleaching? The seedlings a recovering from me adding a cap-full of DM Zone. Not enough water to support even that little bit of H2O2