Is this nutrient burn?

Tracker said:

The singed leaf tips look like very slight nutrient burn. At first glance, the discolored mottling on the leaves looks like Calcium deficiency.

What are grow medium, nutrients, feed/water sched, ppm/ec, pH, temps, RH, light specs/distance? Have you inspected thoroughly for bug pests?

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Tracker said:

2.6 EC sounds high to me.

Are you using RO water, tap, rain,well?

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Tracker said:

2.6 EC sounds high to me.

Are you using RO water, tap, rain,well?

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myke said:

Youll find that your plants will grow just fine at 1-1.5 EC.

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Godofhellsfire said:

Can one you you gurus please tell me what is coursing this?
I'm thinking nutrient burn, but I am just guessing as this is only my second grow.

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