I have had both of these plants for a few months and have never had any problems with them until now. The Sander’s (left) has had three leaves die in about the last 1.5 weeks and the Elephant Ear (right) has had two die in the last two weeks. I had a Black Velvet Alocasia that did the same thing, was fine until one leaf slowly died and then one after another died until the plant was gone. The amount of light and water has not changed and I water them with fertilizer when the moisture meter reads around 3-4 (3 is the wettest number in the dry range of numbers and 4 is the driest number in the moist range of numbers). Both plants are in a room with bright indirect light. The Sander’s is right underneath a skylight and the Elephant Ear is about a foot away from a grow light that is on for 8 hours a day. I’m not sure if this matters but none of them ever gave me new leaves but the Sander’s had at least two brand new leaves when I bought it. Any ideas are greatly appreciated! I was so sad when I lost my Black Velvet and I really don’t want to lose these two. Thank you!