Help needed with 1st grow

[Seabass101]

So just before all this corona bollox kicked off I bit the bullet and bought some gear to give the grow a go.
Unfortunately I was unable to start it in my gaff and had to set up in my bro house. Hes defo not a green finger and trying to explain through WhatsApp is a kick in the dick.
Anyway by hook and crook we have got them growing (slowly).
We have a slight yellow spotting on leaf that has me stumped. Seems 2be numerous things it cud be from what I've read.
Any help wud be much appreciated

 

[Mustang92]

thrips/mites ??? or just start of cal/N def . Sorry not much help but you'll get way better anwser soon.
-You should be able to find bugs on plant that small so what are you feeding it and what is water run off ph.

p.s. again just chatting and giving you what I'd start with. Wait for the real good advice.

 

[Seabass101]

The bro had a good look 4bugs but cudnt see anything. I've got him giving calmag as well as the nutes (canna a&b). Prob just let them ride out 4a few more days on our feeding schedule and see what happens to the leafs. #bluff2puff

 

[Seabass101]

Sorry 4got 2say, no idea on the runoff ph. Think hes giving them around 1/3 ltr each at the min