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[Bluey]

https://www.growweedeasy.com/cannabis-plant-training...

[Bluey]

Both look like they have minor issues.

Temp should be around 26⁰C and humidity 70 to 80%

Could be too much light, could be...

[Bluey]

Guess work?

You must be new here

[Bluey]

Measure the ppm of the water without nutes. After adding the required amount of nutes measure the ppm and pH. Raise pH to 7 or 7.2 for the next feed then...

[Bluey]

Spring water will have a high PPM before adding any nutes. You must take that into account when you calculate your finished nute mix.

A pH...

[Bluey]

Between nute feeds where does the water come from? What is its EC and what is the EC of the nute mix you are using? What pen were you using to measure...

[Bluey]

You've got a Cal deficiency.

Too low pH most likely.

Extra Cal nutes won't fix it...

[Bluey]

That photo you posted is badly out of focus.

I have a USB microscope thingy, it's not great. Phone works best most times at 3x zoom then...

[Bluey]

Ive used a few different PPFD apps on a Samsung S23 Ultra.

They all give pretty wild results until properly calibrated. Not as crazy as...

[Bluey]

Well that's irrigating with drippers so I guess you can call it that.

Some of the best yielding plants ever have constant drip irrigation...

[Bluey]

Hand wash them, gently

[Bluey]

Reduce the EC as the plant begins to take up less water. I will reduce EC from about 1.6 to about 1.2 over those last couple of weeks....or there abouts....

[Bluey]

Not all tap water is bad. Yours could have magic powers that include calmag and other elements such as iron, sulphur, manganese, copper, etc....it might...

[Bluey]

I think I might know this one

[Bluey]

Nailing it as usual G2F

[Bluey]

I have 2 of those. Use them at 100% in flower. I only use them for photoperiods in veg or for autos. They are not powerful enough to light a 4x2 properly...