As many of you know, I'm starting tree seeds IN ANOTHER THREAD.

Went through a period of damping off and have been told that my 60/40 perlite peat media is no good.

Okay, the Picea mariana have began growing and I've removed any that seemed damaged or anemic in growth.

The remaining seedlings started growing real well the last couple of weeks but now seemed to be slowing down and have a weird twisting of the needles. Not all of them. Some discoloration and needles seem to be lighter green than they should be.

Is this the result of something that is wrong? Is it crummy media? Remnants of past troubles? Or maybe it's just the way this species grows? I don't think I've over or under watered but that may be the media talking. The stems seem sturdy and strong. been watering every 4-5 days using a small amount of soluable fert.

The one is the pictures is the worst and there is a percentage that appear to have this same problem but in a more limited fashion. Thoughts?