This Kalanchoe lives in a sunny window in my kitchen and is actually doing exceptionally well.... except that it now looks like something is eating it. I inspected the plant, and can't find any gross crawlies on it. And still, what I can see looks too much like bite marks. Eeeek! Sorry for the crappy camera phone pictures, but it's all I got right now. Can anyone tell me what this is??
Hmm, could be anything doing the damage. You might want to take the plant out of the pot and ck the root-ball for critters that might only come out at night. If still nothing, moving it to "another" sunny location may help.