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already ordered some Grotek Cal-Max as the local shop didnt have any. lets see if I can revive them....

I Used the GH lucas formula plus Canna Boost and little Canazym varied from 1100-1300ppm

I dont get how it can be a cal/mag or any deficiency problem since I did like 10 successful grows with the exact same nutrients. Im not an expect, I just can't understand how can this be possible since I didnt change anything really.

temps are at 26-27 celcius range

I was initially feeding with 1300ppm, but since it started going bad, I decided to reduce it to 1000-1100. Is this even considered underfeeding?

Only the light. I previously had an 150w hps. and I got a spectra 290 LED. Im going crazy because the light was my only main alteration, so this means that everything points to the light. But so many people have had successful grows with it. Irishboy was my main motivator for going into led...

Some of the new leaves in the middle that have not yet become yellow seem to be in good condition and not deteriorate. Would it be a good idea if I reduce the light to 10/14 for a couple of days?

I have been reading RIU for about two years, but never posted for privacy reasons. Now I got a new light and my babies are dying so I had to take the risk and ask for help. I have had like 10 grows, some of them perpetual, in different mediums. I have tried soil, a diy kind of NFT and now some...