Coco soil vs sand as toilet

[Lilafernim]

Hi,

So my hamster has a sand ‘bath’ but uses it religiously as a toilet. She’s nearly out of sand and I use a non-calcium reptile sand that’s 5kg for £8 which is a great deal really for sand.

Just had a thought to save some money but also change things up, I’ve heard a lot of people talk about coco soil? Or coir? I thought about maybe instead of getting sand getting this as a change as it’s super absorbent too and she might prefer the natural feel of it. Just wondering if hamsters ever use this type of substrate as a toilet?

I just don’t want to replace her sand, then her move her toilet elsewhere and never be able to get her to use sand again.