These are three auto-flowering Snowryder that are about a month old.
They're in soil. Nothing special, John Innes #2 from B&Q.
Lighting is a 400w HPS and a few CFLs that I have (200w 6000K, 120w 2700K) that I'm using for side lighting and figured couldn't hurt. They're on a 19/5 light cycle.
I've never given them nutrients.
The temperature is usually between 60-80F/15-25C.
I've been watering them a little bit most days. Been using the "lift the pot method" for seeing if they need water. Oh and like me, the plants just get tap water.
Yesterday I saw some of the bottom leaves on all three getting yellow and decided I was over-watering. Now today the yellowing appears worse.
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On a slightly separate note, one of the plants has a yellow spot at the top of its growth that looks troubling.
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