Heat burn??

Took these inside about 5 weeks ago at 18-24 in., hit em with 12 hour 600 watt hps now they gettin ugly ,they are endless sky. Any thoughts? Thanks for any help...JahView attachment 1809131View attachment 1809132View attachment 1809137View attachment 1809138

flush and back off the heat! what is ur temps? they should be around 75

they are pretty damaged i doubt they'll even recover but id get another opinion before i made hash out of em

over fertilisation of the medium... that is a definite K deficiency.

Unfortunately all you can do at this stage is flush. ease back into the nutes once they've dried out too.

That is definitely heat burn. I used to have lots of heat problems and that is what my crop looked like for the last half of flowering for about 4 to 6 grows. Kinda crazy though is was 100 degrees in my room but my outdoor plants were getting 100 to 105 one year and they looked awesome. Now I got some alaskan thunder fuck which is a cooler climate plant hitting 95 degrees and even a bit higher some days and they look beautiful. Gotta hate the hot time of year when you got heat problems. I am actually thinking about getting some t5s for this time of year. For now i turned off one of my lights. I got a 400 watt mh that i shut off and left my 400 watt hps. in a 4x4 gonna be low yield but what do you do.

Temp is around 80 ,55-60 humidity i didnt ferti them, the soil mix made by a very experienced grower has time release,i did hit them once with soluble seaweed extract. i picked the tops and will try and get more out of the rest of the plant. Try and try again we gonna get it rite!! thanks for the replies.

jahluv said:

Temp is around 80 ,55-60 humidity i didnt ferti them, the soil mix made by a very experienced grower has time release,i did hit them once with soluble seaweed extract. i picked the tops and will try and get more out of the rest of the plant. Try and try again we gonna get it rite!! thanks for the replies.

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he's made it too hot. that's a definite K deficiency brought about by a too saline medium. if there are too many nutes in the soil, K transport is slowed... causing a K deficiciency. Your experienced grower has just learned something.

Wow, 80 degrees. I was sure it was heat burn but 80 degrees is just fine. Good luck.

thats more thna jus light burn, looks like nute burn as well