Hey, there! There’s a TL;DR at the bottom.

So my Dutch, Hermione, used to be /such/ a good rabbit. She was litter trained, quiet, well-mannered, and sweet.

Now, however, ever since I adopted Sybill, my Lionhead, Hermione has become a devilish little blighter. Oh, don’t get me wrong, I still love her, but she won’t use the litterbox anymore, has become destructive, and rattles around very noisily early in the morning. She’s also taken to chewing the plastic elements of her cage (litterbox, cave, etc.) in ways that she never did before. I have cut down her pellet diet a bit, as I’ve noticed just a slight increase in her weight, and she doesn’t seem all that thrilled about that, either. Definitely going back to Oxbow next time, never had that problem before.

Sybill, for her part, is well-behaved, except she’ll just pee and poop whenever and wherever she happens to be. I did what worked for Hermione, just scooping it all back into the litterbox to train her, and it doesn’t seem to faze her. I have gone through two and a half bottles of Nature’s Miracle and it’s only been two weeks. I tried putting a liner down under the playpens… Hermione is OK with hers, for the most part, to the point where I can trust her to have free reign of the cage and playpen while I’m at work, like I used to. Sybill, however, can’t go 30 seconds without digging up half the liner and chewing on it, or moving the playpen around. She’s a sweetheart, and not all that energetic- just far more destructive than any small animal I have ever seen. It’s compulsive, the stuff of sitcoms and legend.

They both have lots of toys, plenty of food and hay, everything done right…

They used to be in different rooms, but I had to move Sybill into the living room with Hermione because her cage is just noisy enough to wake me up. They’re actually both doing /better/, socially, since I moved them next to each other- I think they’re getting used to each other. I just don’t know how to stop the peeing and pooping everywhere! It doesn’t matter if there’s bedding or not, for Sybill, and they both need bedding or otherwise it’s /so loud/ when they move. Hermione has unusually long quicks to her nails, so I can’t keep them that short, and Sybill doesn’t trust me with her paws yet. She was abandoned and possibly abused, so I’m just glad she lets me hold her- nail trimming will come with time (she needs it, they’re wicked sharp).

I just feel bad because I cannot let Sybill into her playpen at all yet. I got a hefty canvas liner that she won’t be able to dig up (it also ties to the playpen) but it’s absolutely filthy from the previous owner (it’s actually a seat cover for a dog, and well-used), and I can’t wash it yet because of the polar vortex- the dryers in my apartment complex SUCK and it would freeze solid by the time I hauled it back. Ideally, I’d like to get (back, in Hermione’s case) to a place where playpen liners are unnecessary.

To my knowledge, neither of them is spayed- both are rescues. Hermione’s previous owner says she did not spay her, and I am at least the third owner for Sybill, as the first owner abandoned her and the second one just fostered her for a bit. My vet recommends against spaying rabbits unless they are cohabitating with the opposite sex- he says it’s expensive and the anaesthesia isn’t good for them, but I’ve read that they have to be spayed to be litterbox trained.

I’m at the end of my rope- please help!

TL;DR: New bunny will not take litter training at all, old bunny has become untrained with litter, and general complaints about behaviour, with pleas for help.