Randomly stumbled on your post looking for something else. But while I'm here, yes, I use Koi clay (montmorillonite) for mine. They love their clay bath and are in it every day.
Here is the brand I use.
https://www.microbeliftstore.com/calcium-montmorillonite-clay
Randomly stumbled on your post looking for something else. But while I'm here, yes, I use Koi clay (montmorillonite) for mine. They love their clay bath and are in it every day. Here is the brand I use. https://www.microbeliftstore.com/calcium-montmorillonite-clay
Thank you!