12 day old seedling: new growth is purple?

booort

Active Member
Need some noob help please. Bagseed in rockwool cube in hydroton in a small 6 bucket DIY RDWC, about 12 days from sprout, slow growth and it looks purple at the top. Also a pic of about a week old feminized lemon skunk seedling that looks a little off as well.

Searched here and read purple is a symptom of it being too cold? The temperature about 6 inches under the t5 stays between 74-80 degrees.

The other 2 lemon skunk and 2 other bagseed seedlings seem to be doing OK, just these 2 look like something might be wrong. Any advice is much appreciated.
 

Attachments

Top