How do they work? They don't have any filters, they don't have anything that would hold denitrifying bacteria well, they don't have bubblers... How do they function? How are the fish ok in them?
The reason I ask is that I came home and looked at the forgotten non fluffy pet stuff stored under the lizard tank (he's coming with me one day!) and I discovered a betta bowl. And I was thinking perhaps I'd fix it up, clean it up, add some live plants, and get myself a betta. Maybe a frog too, if I can, I'll research that stuff when I understand this.
So help me out, how do the fish live in them?
The reason I ask is that I came home and looked at the forgotten non fluffy pet stuff stored under the lizard tank (he's coming with me one day!) and I discovered a betta bowl. And I was thinking perhaps I'd fix it up, clean it up, add some live plants, and get myself a betta. Maybe a frog too, if I can, I'll research that stuff when I understand this.
So help me out, how do the fish live in them?