It’s contained. It’s fed from underground but doesn’t go anywhere. But not protected from birds or other predators.
I’m listening to the frogs now- they sound so neat. Relaxing, once I figured out what they were. I don’t feed the frogs. What would the fish eat?
Zillions of frogs here too, heard them for the first time this year (Spring peepers)...also bigger ones hopping across the road in the rain last night.