Yellow leaves, brown tips, and cracking leaves

watering schedule, lights, ph, nutes used, temps, humidity...give us some info and fill the pot up next time with soil...
 
watering: every 3 days about 1/2 to 1 cup. w/ big bloom
lights: 20/4 7x6500k 6-26w 1-19w
ph: dont know, maybe my problem
nutes: only big bloom
temps: 70-82
humidity: <30%

i shall fit it higher next time around. thanks
 
well i think ppm is for hydro. just the recommended dosage (2 tablespoons in a gallon)
i didn't think i had to start with 1/4 strength since it isn't supposed to hurt plants (it even says). however, it does not have a lot of N, so should i give it a TINY bit of grow big next time since its 6-4-4? or do you guys think N isn't the problem
 
shit man relax with the nutes they only need light and water now no nutes for about six to eight weeks after germ and always start with a couple a drops also get a fan goin they look pretty weak.
 
hmmm 6 to 8 weeks seems like a looong time though. but i will stop with the nutes for the next week. i think im going to the store to get a ph kit, i think there is a nutrient lockup.
 
okay so can this be the problem responsible for everything?

ph... 7.6 or higher, the test kits max is 7.6.

so? im going to read more about ph now, but if anyone wants to give quick fix solutions im all ears.
 
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