There fine, stop over mothering them and leave them be for a few days, it's a weed it wants to grow, I cant get rid of the fuckers in my garden, sit down, hit the bong and leave em alone lol
I'm with the last couple guys because those roots look good and sometimes it just takes a minute. I'd be using a MH or CMH light for those instead of a HPS, maybe they'd enjoy a different spectrum of light more at this stage. Definitely hit a bong though.