[Al B. Fuct]

Thanks for that.

My use of SoG isn't terribly novel but staggering the feed to every 2 weeks and the use of 1 tray per 2-week phase isn't something I've seen done elsewhere- someone will surely have seen it done before, though.

Incidentally, the pots are common 8" dia x 8" tall black plastic types with drain holes, about 50 cents each from a dollar shop. Pots are stuffed with loose rockwool floc. The pot drain holes are sufficiently small to keep rockwool from falling out but plenty big enough to let water in when the trays are flooded. Pots of rockwool hold about 2L of water each; they only require flooding 1x day. I only flood to about 50mm, not to the full depth of the overflow tube. This is managed with digital timers. Each pump has its own timer and can be set for as short a runtime as I like. Different pumps may require more or less time to flood to 50mm and are programmed accordingly.

Nutes are Canna Flores Substra and Vega Substra with Canna PK-13-14 added per instructions in wk3. Flowering tanks are run at 1400ppm, pH5.3-5.8. Tank 4 (for wk6-8) can be run on plain pH adjusted water if desired to flush nutes from the plants, but I usually run nutes in it anyway. I can't detect any smoking quality difference either way. Mother tank gets run a little stronger, 1800-2000ppm @ 5.3-5.8.

Pathogen control is by H2O2, 50% horticultural grade added to all tanks every 3-4 days at 1ml/litre of tank volume.