FIRST of all, I would like to extend a great BIG FUCK YOU to gfreeman, for posting such nonsense. Why would you post anything to do with a grape drink or grape at all with a black man in the back. its boarder line racists and offensive as fuck. mann fuck u. you aint on shit.
Secondly, I regret to inform you but I agree with mostly every one who gave their facts about juice turning things purple. sorry, but it aint gonna happen. if you want a purple strain either look for black rose, kf, or genetics that turn purple such as the one you mentioned yourself (grape ape) Think about it. Molasses is brown to dark brown. and when added with water and fed to plants, it doesnt turn the bud brown.
im not knocking u but you sound like your new to this game (which isnt a bad thing) but get a couple of grows under you belt then try things for yourself. you will quickly find out that much of the things you hear, particularly the name and rename game of strains is mostly bs. so with that, keep growing. The last thing i want to do is deter another grower, but do some research and find out for yourself.