First indoor grow, nothing special, just gettin em ready to throw outside :)

I know it's nothing special lol but i live with my parents im only 19 and theyre 100% against drugs, even marijuana, so i have to be super stealthy because they would disown me if these were ever found, thus i can't have a crazy setup like most of ya's do, the clone is a buddy of mines uncles own strain he calls bubblegum, the one with the funny coloring is an AK-48 from nirvana, cant figure out what's wrong with it, nute burn maybe?? The larger mother's i have no idea what strain they are, just some seeds my buddy gave me from plant's he raided last year haha, and all the smaller mother's are all seeds ordered from nirvana, AK-48, Bubbleicious and White Rhino , going to make about 50 clones this year to throw outside, i don't smoke the stuff anymore quit almost 2 years ago, don't know how i did it i smoked a quarter every day or 2 days, couldnt go a day without a few G's to myself, anyways i was wondering if anyone every got the chance to grow or smoke any AK-48, Bubbleicious or White rhino grown outdoor? Just wanna know how the stuff is, i heard they're pretty high in THC and are a great smoke, just selling the stuff(if any cops are viewing this thread im kidding i am not selling it hehe), and is anyone by chance growing one of the same strain's? If so let me see some pic's of those beauties Again i know they're nothing special, just thought i'd share and was wondering if anyone could point out the problem of discoloration on my AK-48 Mother, thanks for viewing

I don't know a whole lot about growing weed, but I do know about growing plants. That 100% looks like a potassium deficiency to me. Potassium is usually locked up in the soil, be sure to pock around in the soil with something, stir it up, make sure there's good aeration. If all of that is good, I believe potassium is found in most all nutrient formulas (Example: 20-20-20), but I could be wrong...

Yeah the 3 numbers in the mixes mean N-P-K, the nutrients contain nitrogen, potassium , calcium, some magnesium, etc... Yeah i Google'd up potassium deficiency and it kind of resembled my problem, but then i googled up magnesium deficiency and wow, almost identical to what i have so im like 85% sure that's what deficiency i have, anyone know anything i can do about it?? Thanks for your help sh0paround, and anyone else who may help.

cal mag will help with that

What exactly can i add to fix that, like what exact mix/measurements and what not please, thx