Leaves is dark green and yellow spots

Your soil looks like potting mix.. I'm fairly confident it would have all the "required to grow" nutrients that cannabis needs.. Most over the counter store bought soils are usually good enough. Draining and aeration is a factor.

it could be an excess of calcium.. Feeding calcium for leds and cannabis is a weirdly started rumour.. Guys saw increases in the transportation and assume it was from deficiencies.. Plants circulate nutrients around like you do.. They self balance.. They feeding just the water for 1 week or so and see what happens.

Look like you might be having a nitrogen toxicity, Dark green leaves, shiny leaves, clawing, weak stems, and overall slow growth. Marijuana leaves that are nitrogen toxic often get “The Claw” or talon-like leaves that are bent at the ends. They also do an odd curving (or cupping) that is often mistaken for overwatering,

N is a possibility too -- didn't mean to type it that way :P the dots are something else, though.

too much magnesium... could cause spots by locking out other stuff. that can cause the dark green lower foliage too.. can be other stuff.. See link i have in my profile comments for nute calculator -- type in %s from labels, and it spits out tabulated ppms for everything. follow instructions. it cna help you rule out what is possible. Also, a leaf symptome chart is linked from a diarty in my profile comments too.. just click the hypnotoad :P