The last few days I've been noticing these white/yellow markings on my leafs . 5weeks info veg , 22lt pot . Getting fed 1/2 a litre every other day with 2ml a+b 1ml multitotal and 1ml of takeroot all nutirenc is Dutch pro . I'm going to flip it next Saturday to 12/12 any advise will be great will post pics up asap