Deficiency

[darcels30]

Can anyone tell me if & what is wrong with these leaves? It’s only on one plant out of 4

 

[Nunyabiz]

Hard to tell with purple pics.
It's likely a calcium deficiency, or possibly a pH issue.
Might need to get natural light pics and a bit more info to get a better idea

 

[darcels30]

Hard to tell with purple pics.
It's likely a calcium deficiency, or possibly a pH issue.
Might need to get natural light pics and a bit more info to get a better idea

Thanks what a dope I am, try these