I can't generalize yumas, but I bought one and for the first month or so it was touch and go. It would shrivel to nothing then look ok not great, then shrivel again. Finally after about a month and a half it got healthy and now 4 months later is softball size. I can feel your pain, I thought mine was a goner a few times. I don't know where you have it placed but unlike my fla rics that like low light the Yuma seems to like medium light and gentile flow. Even now at night it goes down to the size of not even a golfball at night. Donno if it helps but that's the experience I had with mine.