New Grower First Grow- Sweet Mango Auto

[grunge]

Hey guys,

Newbie here. The plant is growing under 600watt Mars hydro. It's day 60.

What do you guys think?
I am sorting out the potassium deficiency. Growing in soil and feeding flora duo nutes. The soil PH is about 8. So I ph the nutrient solution to 5 before feeding to balance the ph in soil. However no success.

Also the humidity is about 70. Been trying to lower it but though. The temperature is about 25 Celsius

Any advice, comments are welcome.

Thanks

 

[grunge]

Another photo of the sweet mango.

 

[MissUniverse]

My experience is with promix and organics but I do wanna say I wish my plants looked as big as yours. And wanted to say .
Someone with more experience will be along but feel free to check out my grow in my signature, and if you have a Mephisto grape crinkle feel free to join the friendly grow battle we'd love to have you.