God Bud- Canada legal grow

April 8/2020 This week..i added calmag back in... I had to defo a decent amount off today.. This week may have also had an overwatering... only slightly. The purple leaves have now mostly all turned this color.. I thought maybe It might have a nitrogen deficiency, because my plant Space Queen has some lime colored leaves/ that the discoloring of these fans, could also be the same reason? Right now i'mm stumped, i've been stumped for weeks.. I noticed a RAPID decline since switching to only BLOOM lights.. so today switched back on both and just, bite the bullet and see how it goes. I know alot of changes will be made in my next grow, like i say in every diary week// I gain so much knowledge having these issues in my first grow. I have new nutrients on the way, going to make some soil tweaks/ add perlite.. this soil i find is a bit heavy, takes long to dry out. But I now know the early signs of most these issues.. but this one I can't figure out. Any suggestions would be great, I thought/ believe the purple is a phenotype of the plant I also thought it could be a phosphorus deficiency Nitrogen tox happened to all my plants early on/ heavy nute doses ( my bad and learning experience ) Ph meter was faulty for ( maybe 1-2 ) feedings, I now have a new one. I only feed once a week so over-watering isn't my first thought. The buds look really good though, getting fatter each week/ they are so different structure wise, though haha. They smell really good, starting to get pungent and sweet. I will do the FLUSH next feed, as it's part of drain to waste with my nutes. This week sucked, i'm sure my mental health being in the toilet didn't help but whatever. Hope everyone stays safe.👽😷