First time paying attention to roots

[VexingSquirrel]

Hi, I dont like throwing out the runts so I put this guy in a clear container to see how the roots grow. I am curious if anyone can tell me anything about them, is this good,bad or just plain ugly? Also what is the green buildup in some spots? should I be worried and how to fix it. Shes a Wedding cake Auto. No LST and she may not be as big or tall like her sisters but shes still beautiful.

 

[BigCube]

The green buildup is algae, it needs light to live, so cover the clear plastic with a bag or something and take the bag off to see the roots. Algae can harm the roots and mess with nutrient levels, best cover them up when not viewing them.