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[durple25]

Purple Punch F1 Fast Flower

10 weeks old, flipped to flower 3.5 weeks ago

GH FloraNova nutes

Not sure what’s happening here. Looks to be spreading to the middle plant. Noticed it about a week and an half ago.

Any suggestions on how to fix it or thoughts as to what’s going on here?

It’s my third grow and haven’t dealt with any deficiency issues so far.

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Discussion

[burny]

Check PH is always first in my book. Make sure your in VPD range, a good app I like to use is Dr Greenhouse VPD calculator. After verifying PH and Environment are on point then look into deficiencies. My guess is because they are in week 3 they are getting picky and either your PH or Environment is out of whack. Hope this helps.

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[durple25]

I check my ph every time I water it and have been consistently within 5.8-6.4. Based on what I’ve read that seemed to be good. Would you recommend lowering it to mid 5’s?

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[durple25]

I also have my humidity set at 55% and temps are hovering in the upper 60’s at night, lower 70’s in the middle of the day.

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[burny]

What media are you running? I never go lower than 6.0 unless your running rdwc. Even in straight coco 6.0 should be great. You might be running to acidic causing lockout. That’s my take.

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[durple25]

I’m using 100% happy frog media.

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[burny]

Make sure you have a reputable ph pen or check your ph pen with a ph strip. Ph pens are notorious for going way out of whack. If you don’t store them in solution they are worthless.

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[durple25]

I’ve had a reliable pen for almost a year and never stored it in solution. Should I just be recalibrating it in distilled water periodically? With so many “do’s and don’t’s” of growing I may have overlooked my equipment upkeep.

This will be my third run with it and both of the prior grows turned out great. I’m watering today and I plan on bringing the ph up to 6.9-7.1.

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[burny]

Don’t be to drastic with the ph swing on your plant. That could cause more harm. When in coco I usually ph to 6.0 to 6.3ph. I would flush them with 6.0ph to help wash out any salt build up. You will need to start with a clean slat then start them out with a lower dose of nutes to get them to eat again.

Please look up ‘how to properly store a ph pen’. They can cause more harm then good if not maintained properly.

Cheers

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[burny]

Sorry I missed the happy frog soil.

In soil ph is different aim for 6.2 to 6.8ph, lightly flush with 6.3ph.

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[jmystro]

Most likely cause of mineral lockout is from an out of range pH in the media. Your bottled GH nutrients have the essential minerals required for healthy growth until the pH goes out of range and they become insoluble and unavailable to the roots.

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[Unknown Member]

Humidity seems a little high for week 3 of flower in the low 70s daytime temp?

Have you grown this strain before?

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[durple25]

I haven’t grown it before, no. I have an ac infinity humidifier so I can set it a little lower. Thanks for the input!

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[rvf239]

Looks like a calcium deficiency to me.

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[flowerpower]

With happy frog Ph should probably be around 6.0 – 6.5. What are you feeding as Happy frog has a light nutrient recipe. Bottles? Top dress? I grow in living soil, and have quit monitoring Ph. It has been several years since I checked it. I actually sold my Ph pen to a bottle user LOL_. I’m no expert but I would first try some epsum salt, or heaven forbid, cal-mag LOL. Remember bottles are for babies not plants LMAO.

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