there about 3 weeks old from seed (nirvana)

-should i add more hydroton into the buckets? Its my first grow i want it to be succesfull, pce

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IM THE BRAINS PAPI. NEVER TELL YOUR LEFT WHAT YOUR RIGHT HANDS DOING

I think your problems have to do with feeding. What are you giving them and how often, and at what strength(PPM)?

flora grow,micro,bloom about half of cap and sum flora blend half a cup also
last time i changed the buckets was 4 days ago and before that i balanced the ph to 5.5-6. O yea i have an 8 pack but im only growing 2 seed ice and fourway, i ordered some, they should be coming this week (super haze, jack,aroma)
thanxs for the help bro.

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IM THE BRAINS PAPI. NEVER TELL YOUR LEFT WHAT YOUR RIGHT HANDS DOING

Get yourself a TDS meter. You need to know what the nutrient concentration is(PPM). For now, ease off the nutes and don't feed so much. Let the top of that rockwool dry out a bit between feedings. Do you just have them in buckets or is there a drip system?

isnt a TDS meter sorta like a PH meter? I have the pump on 3-30 min sessions and yea its the bucket w/ drip ring + 1 air stone and pump i switch off between the 2.

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IM THE BRAINS PAPI. NEVER TELL YOUR LEFT WHAT YOUR RIGHT HANDS DOING

dont want to scare you or anything, just make sure you also fight against powdery mildew and such because they are strangely greyish. Probly is nothing of the such just dont count anything out

yea i kno i have no clue, i washed the hydroton with regular tap for about 2 min let it soak

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IM THE BRAINS PAPI. NEVER TELL YOUR LEFT WHAT YOUR RIGHT HANDS DOING

TDS and pH are two separate readings. There are meters that can do both, but they're not cheap. A cheapie TDS meter can be had on ebay for around $20. I can't stress enough how important it is to have one, otherwise you don't really know how strong your nutrient solution is. In the meantime, try running the drip a little less frequently, maybe 15-20 mins per session instead of 30 and see if your plants respond well.