HELP! Tops of my plant have diffrent color

[BeauE01]

Looking for answers on what my plant is doing or if its sick. Please any information will be greatly appreciated thank you. My soil is 50/50 costa main and ocean forest i dont feed them just water when needed plants are outside in 30 gal pots

 

[OldHippie]

There's that purple color on the tops again, mine get that and it's been no problem. As the leaves get bigger that purple color disappears. Not sure what causes that, might be just good growing conditions?

 

[BeauE01]

Thats good to hear i was worried ill keep an eye on them and its strange that not all my tops are like that only certain ones thank you for sharing your knowledge and pictures it calmed me down haha