Beginner Gardening: Tradescantia Zebrina (wandering jew), new leaves not looking healthy., 1 by Nersumae

Nersumae wrote:
Hello,

These Tradescantia Zebrinas are growing indoor and as you can see on the picture the new leaves are not looking very healthy.

I think they are receiving enough artificial light (between 2500 and 3500 Lux), the PH should be within range too. Relative humidity at the lowest is 60% when the aircon is running and higher when it\'s not so that should be fine too.

So I think the problem could be either too much fertilizer (not very likely... or maybe not enough ? even less likely ?) or too much water.

What do you think ? Does it look like over-watering to you ?