Nutrient burn with MC?

[Chuckeye]

This issue with Wild Thailand has taken about two weeks to manifest to this point and has been on 6.5g/gallon.

Watering/feed frequency is 3 days.

5 gallon fabric bag of ProMix HP, 600w HPS @ ~ 24" and 100%.

Day 37 of flower and a total of 91 days. Temp ~ 78F and rh ~40%.

After a 3X flush I have backed off to 5g/g three days ago.

No noticeable progression since, this is a bud with the leaves clipped on the right side day of flush.

But the issue has also been presenting itself in my Golden Tiger. The Malawi and Apple Betty are looking just fine...

About two weeks ago I just felt she wasn't as perky as she could be and noticed the curling leaf tips, backed off to 6g/gallon.

This is today....

This is the third or fourth grow with MC, over a dozen different species fed at least to 6.5g/4L. A couple up to 7g/4L and the worst I've seen is slightly yellow tips.

No curl and no yellowing progression up the leaf....

Neither of the girls has shown yellowing leaves on the bottom since I upped the feed by .5g/gallon to 6.5g/gallon.

That leads me to think overfed ? A first for me, with this food

Thoughts ?

Care to show what overfeeding with MC looks like on your plants ?

Cheers

 

[Roy Growin]

Hi @Chuckeye - curling leaf tips like that says humidity too low to me rather than a feed issue

 

[Chuckeye]

Hi @Chuckeye - curling leaf tips like that says humidity too low to me rather than a feed issue

Hmmmm, humidity and air flow is the same as it has been for years...

Have I just got two picky girls ?

Cheers