Mutation and Stunted growth

[Bearmash]

My White cookies Seedlings have been happily in there new home for about 3 weeks now. I have notice some random mutation on one of the girls, and also some slow vertical growth compared to my previous grows.

I am currently using a new Rdwc setup I built with 70L totes. Water temperature has been consistent between 20-20.5 Celsius. PH has been steady 6.4 and ppm is 644. Environment is steady about 24 Celsius and humidity is average about 40%. I am using 2x 1000w full spectrum LED Amazon lights and a 2000w king plus LED about 20” above plants.

Other than the mutations I have also in the past week noticed some spotting and drying out of the lower leaves of the mutated baby.

Any assistance is greatly appreciated.

 

[FTCG]

Lower the nutrients couple hundred ppms and you can raise your light up a bit as well.

You have space so no need to keep them too bushy and pushing them to the max.

Lift lights up to 30"-36" and let the plants fill up the canopy for a much larger yeild.

The plant doesn't need to be that short and bushy in the early stages.

The leds are effective from higher up as well, and there will be less light and nutrient stress on the plant.