Clones alwAys look like shit, but that's why they root. They're exhausting stored nutrients and carbohydrates. Once they run out they now have a reason to root. Most will eventually but I only keep those that root at or before 12 days. Knock on wood, my success is ~99%. But I use pharmaceutical hormones and cultivate my own min robe innoculant. I use tunable spectrum high power leds and a 10000k Metal halide and have automation. wait it out and let them breathe for 30 min everyday for the first 4days. Then remove the lid and harden off slowly.