VIP Dwarf
250 HPS
Bio Bizz Light Mix
11 litre pots
I'm now on Day 39, but appearance of this plant, has been yellowing since Day 21. At first I thought it was maybe light bleaching, or nute burn, but theres plenty of distance from the bulb, and my feeding schedule has been water-feed-water, every 2 days, since Day 28. Feed has been 0.5ml OT Grow and 0.5ml Bloom per 2 litres.
From the information I've seen, it appears it's a zinc deficiency. I'm going to try and get a PH pen today, even though soil usually buffers, and check the water. Any help is greatly welcomed. Below is the gradual change.
Day 21
Day 25
Day 29
Day39
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