Is this a nutrient problem or

[Flackoestrada55]

had some new growth come in slightly deformed almost like it got bit by something but no pest in sight , one or two leaves small yellow hole and one or two fan leaves had slight yellow tips other than that plants doing great!
Light is 19 in from tallest sight
RT-72-75
RH-58-60%
Coco perlite
Lotus nutrients- grow 1.75 tsp per gallon
Lotus nutrient-cal mag 0.5 tsp
6.5ph
Should mention feed twice a week once with grow and the other just water with a smaller dose of cal mag any suggestions?

 

[growmie]

Leaves look eaten. Got a cat? Coco, should aim for 5.8pH, or at least maintain pH around 5.5-6.1., what's ur ppm/ec?, what's ur ppfd?

 

[Flackoestrada55]

Leaves look eaten. Got a cat? Coco, should aim for 5.8pH, or at least maintain pH around 5.5-6.1., what's ur ppm/ec?, what's ur ppfd

I don’t have any pets that would get in the tent , that’s good to know I’ve been using 6.5 but will adjust and see what changes , I’m getting a meter for both on Amazon so I’ll get back with both readings!thanks for quick reply !

 

[growmie]

I don’t have any pets that would get in the tent , that’s good to know I’ve been using 6.5 but will adjust and see what changes , I’m getting a meter for both on Amazon so I’ll get back with both readings!thanks for quick reply !

 

[RootFarmer]

Is your coir pre-charged?

 

[Flackoestrada55]

Is your coir pre-charged?

Yes now that you mention it it says it’s pre buffered with calcium

 

[RootFarmer]

Yes now that you mention it it says it’s pre buffered with calcium

Thanks for that. Both Mg and K can be an issue with coir also. Looks like the coir could be depleting Mg availability. You might want to supplement with some Mg sulfate. Maybe @Captspaulding could offer some input. He knows his coco.

 

[Swamp_donkie79]

Begining of Magnesium deficiency. U see the yellow lines in between the viens on ur leaves . Epson salt 1 tablsp per gal water foliar spray at lights off. Also water in soil. Or u can use good ol cal-mag

 

[Flackoestrada55]

Yes now that you mention it it says it’s pre buffered with calcium

Begining of Magnesium deficiency. U see the yellow lines in between the viens on ur leaves . Epson salt 1 tablsp per gal water foliar spray at lights off. Also water in soil. Or u can use good ol cal-mag

I will definitely be trying the spray at lights off and in soil method , I’ve been using cal mag but feel like the pre buffered coco is retaining most of it and just passing my calcium