Nutrient Burn? Calcium? Baron?

1st time grower having an issue that I cant pin point. The plants look pretty healthy aside from this and Im considering a flush today incase it is nutrient burn but I needed some opinions first from a great group!

looks like nutrient burn to me

looks like nute burn and a bit of heat stress

Yea possibly a heat issue as well. What is your temp and himidity run at?

Im using Fox Farm Nutrients Grow Big, Big Bloom right now been at 50% strength for 3-4 feedings cant remember since im at work. Im into my 4th week right now and was moving to Tiger Bloom soon. My soil is the FFOF as well. Think I should flush with Sledgehammer then 1/4 nutrients ?

Purple Urkle said:

Yea possibly a heat issue as well. What is your temp and himidity run at?

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Humidity useally at 50% and temp 79-81. I have a humidifier running consistently and 1 12 inch fan with 2 small clip on fans still having issues keeping the temp around 77 where I want it.

I personally would do a flush once soil is dry then drop your nutrients to 1/4. Dont give any other nutrients in the mean time. Less is more id say.

Ventilation is key also. Make sure the box or room can breath and exhale roughly the same. More outtake fans could help also.

Purple Urkle said:

I personally would do a flush once soil is dry then drop your nutrients to 1/4. Dont give any other nutrients in the mean time. Less is more id say.

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Awesome thanks thats what I was thinking as well and until last night wasent even looking in the Nutrient burn direction but I think I got overzelious a few weeks back thinking it was a calcium issue.

Im having a similar issue lol . Try it out bro. Good luck!

Purple Urkle said:

Ventilation is key also. Make sure the box or room can breath and exhale roughly the same. More outtake fans could help also.

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Yeah I live in rural Alaska and this time of year pulling air from the outside would shock/kill my plants probably so Im not getting a lot of fresh air pulled in. Im using a 4x4 tent right now and summer time should help keep everything cooler. I use a wood stove a lot and it heats my house so well that it gets my temp inside to 84-85 most nights so that seems to be a big part of it all. I will be looking into a second osculating fan and maybe drop my two small clip on's as well. Thanks for the tips.

Np dog. Take care, keep grow in!