Unknown strain

That is a phosphorous deficiency. Add some extra to your feedings for a few weeks before you flush and you should be good to go.

Is that surviving off window sun light? What’s the light source? Looks like super weak light input, tied to some nutrient issues, and possibly more.

- Lack of nutrients / Light ( They also looked dry in most pics ) - They seem to be budding the pistils are still white so not ready to harvest - try a window with plenty of light ,ventilation and heat

Hey if you clean up those bottom buds and only have the top buds going, that will help with the plant focusing on the good buds and not the popcorn buds on the bottom. Happy growing