Every time I try to feed one of my pets, and then come back to the farm a little later, it says that I have not been feeding them. Like, I'm feeding them, but their health isn't coming up, and the "last fed" thing isn't updating.

So, I figured that I would buy a berry tree and put it into the farm, so that I wouldn't have to worry about feeding the pets. I did that, and when I dragged the berry tree from the "unused accessories" to my farm, and it wouldn't go in; as in, I tried several times and the berry tree wouldn't stay put in the farm, it kept popping back up in the "unused accerssories" thing.
**Also, this is not on my main account, it's the one I breed my pets in to supply my main account. So, the rooms aren't "full" of accessories or anything- all they have in them are food barrels, water buckets, and bonsai trees.
And, it's not allowing me to put berry trees into ANY of my farms, and the problem up in the first paragraph only occurs in ONE of my farms.

It sounds to me like one or more of your farms has more than 10 creatures. This is a known glitch in the game. If you get rid of any creatures that are over the '10 per farm limit' you should be able to feed them no problem.

Oh, okay, thanks. I had thought of that earlier, and I guess I just counted wrong, because I only came up with 10 pets, but there was an egg in there, so I moved it,and now I can feed them again.
Thanks!