plant problems.. would appreciate advice****

Pictures 1&4 have lime green leaves with the the bottom and middle fan leaves turning rusty brown and eventually dying off. should i immediately remove the leaves? i think this is magnessee deficiency or iron deficiency buy im not sure. what should i do?

picture 8. wilted leaves after 2 1/2 leaves of being healthy. little brown/rusty specs looks like it is eating away at the plant. i do not know if it is deficiancy or pest.? the plant looks like it has no life. what do u think?

picture 9. lime green leaves at the middle and top. and new leaves have bleached tips. besides that it seems very healthy. should i be concerned about flowering or should i be ok?

Need some data first. what have the temps been for the past week, what nutrient line, how high is the PPM, whats the PH

temp has been 75 to 84f day 68 to 75 night. ph is 7 tryn to lower ph but no luck yet.no ppm meter.

how dose pic number two look u think i can start to flower it even tho its color?or should i try tofix first?

hello can anyone help???

if this continues try to get some distilled water(id prefer rainwater due to its good minerals and its freshly aerated) and flood the shit out of them. check the pH of the water and get some lemon juice or some kind of organic acid and lower it to around 6.0-6.6. most of these look like nitrogen or magnesium deficiencies, fresh rain water has a good amount of both but a pinch of salt could help. also make sure your not overwatering, stick your finger through a hole in the bottom of the pot and make sure the bottom 4 inches aren't too moist. when theres almost no moisture in the bottom and the leaves perk up its time to water.

and id get it in a better state before flower, and introduce a small amount of bloom supplement while lowering the light time to let it know when to change its phase.

keep us posted.

what do you fertilize with? look malnourished imo

wt do you think about the tall bushy sativa that has lil lime green from middle to top? should i wait to flower there about 20-22 inches now and about n the third week

get some nice veg nutrients, something organic(optional of course, but if you do it youll thank me when you taste the smoke) with a good npk ratio, like 5-2-2 or something with high nitrogen. i prefer fox farms really, or bat guano/any other guano really. if you wanna save money, id say put a 5 gallon bucket outside and let it fill up with rain, or if its a drought where you live just fill it up, correct pH and let it sit(maybe even put a airstone in it, tap water isn't very aerated for roots).

and wait till they're growing good nodes again to flower, checking soil pH might be a good idea now that i think of it. make sure your in the 6 to 6.7 range acidity.