Whats wrong with these autos

[Corogold]

So im wondering what ive done wrong and how to fix the issue heres some pics

[Corogold]

This is amnesia x autoflower coming into 2months old soon

[Corogold]

Heres 2 pinnapple express at 1.5mth old

[Corogold]

So all 3 of these are outdoor autos in summer nz any1 know what possible problems are or could be and what solutions. They grow in tui pot power potting mix with 6month slow release ferts

[Booger789]

looks To be a ph problem causing, some nutrients to lock out..

[Rwise]

What are you feeding them? To they look hungry,,,

[SoOrbudgal]

I agree they look underfed. Autos I know don't like a lot of N but that soil looks used up.

[duckman]

agreed, soil looks dried out and too dense as well IMHO.

[Corogold]

Ive only got some thrive orchid n.p.k 10.3.14 and ive got tui fish and seaweed n.p.k 10.8/1.3/6.3

[Corogold]

I have feed a small amount of food awhile ago i dont think that cause this to happen i only feed a very small amount. I do i have to ph my water for outdoor cause my guerilla grow in ground get not very great source of water but my outdoor autos i give them boiled water cooled obviously ahaha

[Corogold]

Il put pics of my healthy 2 autos that have been looked after the same

[Corogold]

Heres my 2 healtheir autos this is pinnapple express auto at 1.5mth

[Corogold]

This is my mystery auto at nearly 2mths

[Corogold]

Heres my recent members in my green family

[Corogold]

That is 2x skunk cheese. 1x dark devil. 1x gorrilla widow. 1x mi5. 1x girl scout cookies all autos 3x at 1 week old /3x 2days old

[Corogold]

And ive just remembered these are not in good soil i just clicked that i ran out of my good poting mix and i used cheap 5doller compost and 4doller potting mix and they were those 3pots i filled with the 3 sick looking auto plants so i think will know yous are right they will need food correct . And im broke at moment but had the 2 ferts i metioned above what 1 do yous think would be better thrive orchid or fish and seaweed