Leaves will turn transparent or translucent when it has lost a significant amount of chlorophyll which gives plants their green appearance. The causes that are attributed to this loss of pigmentation are damaged roots, poor drainage, high alkalinity, nutrient deficiency, and compacted roots.
Regarding this, should I remove translucent succulent leaves?
You will find that, in such a case, with just the little root structure and parts of the lower leaves and stem rotting; the plant top remains healthy. As a first step, remove all the signs of rot. That means removing the leaves and cut off any rotten stem.
Also know, how do you care for translucent succulents?
Water Haworthia cooperi succulents whenever the soil dries out. During the summer, you may need to water the translucent succulent as often as once a week. In wintertime, reduce the watering frequency to once a month, or even less. Soil moisture is the best guide for Haworthia cooperi watering.