What causes leaves cupping down or tips hooking down?

blahblahblah123 said:

I thought both of these are caused by PH problems. I have changed nothing in my grow, yet 1 plant of my current 4 the the fan leaves are all cupped down, or hooking violently down at the tip.

The other plants are all happy as can be. Same soil/nutes/enviro, same strain albeit from seed. It is a different pheno of the same strain (aurora indica), sativa pheno. My indica's are happy as clams.

I have not checked PH, as I cannot afford a nice meter, and the drops dont work cus my nutrients are too shitty (literally). I have never had problems before except for this plant.

It's just gotten worse and worse as the weeks progress.. I was hoping it would pull out of it but i think the cupping is all permanent damage now.. no burning anywhere though.. just droopy cupping bastard

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Cesaro said:

Probably over-ferting them. I'm growing some Aurora's along with Masterkush, and they definitely seem a lot less sensitive than them.

Whenever I have gotten the "Rams horn" I flush for a day or two, then cut back on the fert. Fixxed the problem I had in the last grow I did except for one plant just looked like totally trash for the entire grow.

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