If they start to struggle in any way, I would up the light....they love bright light (I have grown them in full sun). I have a flask of them currently sitting about 4" beneath a T5 light, and they love it. I realize you are trying to make them grow slow, so stay with the low light. But if they ever start to go downhill, that will be the problem. I had a couple seedlings that slowly declined in health, from the day I got them...until they were almost dead. One day, I stuck them in the full sun, and they recovered vigorously. This was in Fla. humidity, so I don't advise this in a more northerly climate...Hey Dave, like the disclaimer?
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