Directly from that page : " If your plant is experiencing "the claw" and not just normal drooping (the ends of leaves are curling like a claw or pointing down like talons), then you may actually have a
nitrogen toxicity (too much nitrogen).
These Plants Are NOT Overwaterd, These Leaves Show Signs of "The Claw" which usually indicates a
Nitrogen Toxicity
("The Claw", tips bent down, curling / clawing, dark green leaves) " This seems to be it, time to look up nitrogen toxicity.
Edit- Yes definitely what it is, don't know how this is possible, it started happening before feeding, I'm using pro mix, and have been the whole time, only thing the first pro mix i used was a bit different than this stuff, maybe possible it had a whole lot of nutes in it? Was just a small bag to suffice in 18oz cups until I went and got a bail of it! Was different though, less perlite and darker, absorbed a tiny bit more water than normal mix. And of course I just fed them again. (yes it was time for a watering, leaves were starting to droop from being too dry, becuae i was worried of it being caused by overwatering lol.) gaaah guessing they are going to get worse :/ What ive been reading about it though its more common in flowering and its not really possible to give them too much in veg, unless going way overboard on the nutes and this was happening before nutes, really weird...