Once a leaf fades it will never get green again. It won't always die, and i've seen some appear to get 'healthier' but once a leaf is damaged by a deficiency the damage is done. In the case of mobile elements it takes from the old to generate the new. It doesn't repair the old though - what will happen is the plant will continue to grow, and if the damaged leaf doesn't die, it may continue to grow and eventually look a little healthier than it did.
im not gonna argue w you about dumb shit ive seen plenty of faded leaves go green again..... stupid talk....
this is a must. water is very important. ph beforeyou water. and check runoff. i garentee tht is your problem, with tiger bloom it happens all the time. my guess is your putting out numbers near 5.0. N is only avail closer to 6-7. adjust ph perhaps flush once to rid excess salts. if you cant afford a meter strips works just as well and are very cheep. also look into a tds meter as well. not as important but it is nice to KNOW how potent your mix is as well as your tap water to begin with.
not really stupid talk... faded is one thing but leaves which have had deficiency, like squidbilly said will not come back.
