Crispy Leaves and a few spots

I’m growing 7 plants and have been a bit slow, but doing well overall. Lately some leaves getting crispy on the ends and some spots showing up.
Here are the details and photos
Strain; Type, Bag seed, ILGM… name of strain: Gorilla Glue feminized strain. IGLM seeds

How many plants: 7

Age from Sprout and Flower: 10 weeks

Soil in pots, Hydroponic, or Coco / Brand and type of Soil & Size of Pots: 8in pots in Coco w/perlite.

How often do you water and how do you determine when to do so? Water every other day. I check soil moisture with a tester

PH of water and runoff or solution in reservoir: unknown, bgg ut water PH probably not great.

What is strength of nutrient mix? EC, or TDS: using ILGM growtime fertilizer.

Indoor or Outdoor: Indoor

Light system, size and height from plants: 300 W LED full spectrum

Temps; Day, Night: 79 day, low 70s at bight

Humidity; Day, Night: 40%

Ventilation system; Yes, No, Size: yes, grow ten cents and consistent air flow

AC, Humidifier, De-humidifier: humidifier used to keep above 40%

Co2; Yes, No: No

1 Like

first------transplant into 5 gallon containers.

the leaves are hard/crispy because of a nute imbalance. something is lacking.

Thank you. I don’t have room for larger containers. I should be able get them a little larger, but definitely not 5gal. I have the complete pkg of ILGM fertilizers and will have to look at them. Also, I was thinking I may have an issue with the water I was using and the PH being off.