New Grower Leaves sweating???

[Fantasy Island]

I have one leaf that keeps sweating.
I wipe it off and it will reappear, not sure how long it takes to reappear.
It has no or very little smell and there is no chance that its from splash or anything like that.
She Is doing great and looks perfect so nothing seems to be wrong.

Environment:
Coco Drip @ 4 times a day.
Temp: 69 - 75 degrees
Humidity: 49 - 55%
Leds
Plenty of air movement and circulation.

So what is it?

 

[MedGrower]

And that leaf hasnt been in contact with the nearby leaves, having them on top of it? Thats what happens to me anyway and after moving them I can see something quite similar. If this happens all by itself, then thats quite interesting!

 

[Fantasy Island]

And that leaf hasnt been in contact with the nearby leaves, having them on top of it? Thats what happens to me anyway and after moving them I can see something quite similar. If this happens all by itself, then thats quite interesting!

There is or was ( I picked it) over it but not touching it. about 1" above. I plucked the leaf this morning so I guess if that leaf is not wet this evening that was the cause

 

[Corgy]

I see this quite often, it is just the normal perspiration that get trapped on the leaf due to another leaf shielding the sweating leaf and/or poor air circulation. Whenever I see it, I simply snip off the shading leaf......case closed.....until the next one!

 

[Hal 8999]

Corgy is right, just normal perspiration via caught transpiration. If it is just that one leaf, it is probable getting a direct beam from a UV or IR diode.

 

[Fantasy Island]

Okay good. I didn't think it was a problem. Thanks guys