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I think your ID is correct. Unfortunately I don't have a picture when the plant was healthy. It has lived in my bay window for years with an...
Haven't changed my watering schedule and soil was very dry on transplant, but I can try that, simple enough... Thank you.
I have cared for this cactus for 30 years indoors. Until recently it was a compact tower shape, about a foot in height. Recently it started to...