Hi Patricia,

Your plant looks like it's chlorotic. You need to adjust the water you are using to a lower pH.

https://atlas-scientific.com/blog/how-to-adjust-water-ph-for-plants/#:~:text=Baking%20soda%2C%20also%20known%20as,stir%20until%20it%20dissolves%20completely.

I use about a teaspoon of vinegar per fruit jug bottle of plant water. In the spring the water treatment centers need to add  more bleach to our water systems to kill off bacteria and pathogens which results in our tap water being a little more "bleachy", or high in pH. Plants are unable to take up iron and other nutrients when this happens. The result is yellowing of the leaves and the slow demise of the plant.

Good luck,

Sally Granath

St. Louis County MG

Well that's interesting. It sure looks chlorotic to me. Have you tried giving it some fertilizer ? I still think you need to add a little vinegar to your water. Do you see any signs of sticky residue ? I'm wondering about spider mites. Just to be on the safe side, spray your plant thoroughly with one teaspoon of dish soap in a bottle of water. This can't hurt your plant. Keep me posted .....

Sally Granath