Help diagnosing....Please

Hi guys. Can anyone help me with this please. It seems happy enough but yeh something's goin on. Growing in canna professional. pH 6-6.5. feeding once every 3 days. 7g fabric pots. Veging 24hrs lights on (400w full spectrum led) hanging 3ft or about 1meter above. Ummm what else...temp hangs at around 21degrees Celsius and 55-65 humidity.

saturate the soil with water. you probably don't have to feed so much. light 18/6.

polishpollack said:

saturate the soil with water. you probably don't have to feed so much. light 18/6.

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Thanks for that..

That plant is still too small to handle the feed.

70's natureboy said:

That plant is still too small to handle the feed.

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Sorry man I should've mentioned my feedings are half nutrients.

she still can't handle it.

Is that what's causing the leaf damage ay?

RobMac315 said:

Is that what's causing the leaf damage ay?

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Nah

Haha well this is helpful smh

For food, get yourself a ppm metre and check the feed going in vs run off water, assuming thats coco? Dont let the ph get so high as 6.5 but also keep your water very consistent ph always the same, temps a bit on the low side, you can run 24hr everyones got their own opinions on everything including all what I've said, leaf damage could be ironically deficiency of some variety but could be ph fluctuations also. Feedings far more complex than just she cant handle it

HELPBUGSWHAT1 said:

For food, get yourself a ppm metre and check the feed going in vs run off water, assuming thats coco? Dont let the ph get so high as 6.5 but also keep your water very consistent ph always the same, temps a bit on the low side, you can run 24hr everyones got their own opinions on everything including all what I've said, leaf damage could be ironically deficiency of some variety but could be ph fluctuations also. Feedings far more complex than just she cant handle it

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Thanks for your helpful reply. The medium I'm using is canna professional, a peat blend and perlite. I don't have an ec meter but I understand I really need one. I do fluctuate pH quite a bit to try combat lockout on either end of the scale. Im just stumped. Like I say it's happy as but yeh I'm doing something and this particular plant is taking kindly to it. The others are fine...

RobMac315 said:

Thanks for your helpful reply. The medium I'm using is canna professional, a peat blend and perlite. I don't have an ec meter but I understand I really need one. I do fluctuate pH quite a bit to try combat lockout on either end of the scale. Im just stumped. Like I say it's happy as but yeh I'm doing something and this particular plant is taking kindly to it. The others are fine...

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Ok not familiar with growing in that so i wont try advise but the ec will stop you wondering what foods too much or too little, people can say a plethora of things but numbers dont lie.

Honestly fluctuating ph out of fear is probably going to cause more problems than you're trying to prevent, i personally aim for 5.8 (in coco) and keep it locked there the entire time never an issue, try find a leaf deficiency guide i know there will be one on here somewhere, if not it may be one of those ones where you let it continue until its easier to tell.

Also why are there little bits of leaf missing? Thats slightly curious

What are you doing for Mg?
What kind of ranges are you using in terms of your pH? You should pretty much shoot for 6.5, if you're in soil, and manage it within a couple points +/-.
This is where I'd start.

CannaCountry said:

What are you doing for Mg?
What kind of ranges are you using in terms of your pH? You should pretty much shoot for 6.5, if you're in soil, and manage it within a couple points +/-.
This is where I'd start.

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pH range is 6-6.5. I haven't tested runoff because it's so hard to get a runoff. I don't want to drown it. I'm not using anything for Mg but am leaning towards that being the culprit due to fluctuating pH but I really don't know.

You said you were feeding it every 3 days, are you giving plain water on other days?

twentyeight.threefive said:

You said you were feeding it every 3 days, are you giving plain water on other days?

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No plain waterings in between.

You can’t drown a plant in one watering, you can give it as much water as you want in one watering. Overwatering happens when the soil stays wet for too many days

SCM 831 said:

You can’t drown a plant in one watering, you can give it as much water as you want in one watering. Overwatering happens when the soil stays wet for too many days

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Sweet

SCM 831 said:

You can’t drown a plant in one watering, you can give it as much water as you want in one watering. Overwatering happens when the soil stays wet for too many days

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This is the most simple and exact way to explain overwatering. Love it.

twentyeight.threefive said:

This is the most simple and exact way to explain overwatering. Love it.

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I agree. Especially when it's going to take days and days...and days to dry out...