Yeah that looks like overfed/nutrient lockout. Not sure what though.
As usual, I'd probably recommend lowering your feed and using a little bit of calcium (buffering).
Llevo 4 dias solo agua o 5 ya no se jajajaj y han pegado un estiron asiq el respiro les ha venido genial creo q e visto pistilos hoy no se yo ahora subire mas fotos de ahora
Your girls are looking fantastic. Right on the edge of nutrition burn with the tips. But just ease off a little on the fertilizer and you’ll be golden. Happy Growing!!!