i have a similar problem and i was thinking that they dont eat any other leaves

Hi, welcome to GoY, I'm afraid you will have to be a bit more explicit with your question, what doesn't eat any other leaves, and all plants have a fluid content, even cacti, Derek.

Especially cacti and succulents. Robin if you add this to one of the other posts you mention all the people who replied to that one should be notified and you will see their responses.