Details:
> Buffered and rinsed Coco coir mixed with a little perlite
> Balled/more less clamshelled the rhizomes in live sphagnum
> Left is Gigante and right is somewhat of a mystery
>pots
They're not square, but the same brand carries round tall pots in 5 and 6 inch versions. I'm using the 3.5 inch pot now for mine and they're nice and sturdy.
https://www.amazon.com/dp/B07SHQRP8R/ref=dp_iou_view_item?ie=UTF8&psc=1&th=1#