Beautiful but wcs must be a pain.
Also, I can’t imagine that lasting forever, eventually I’d think a few dominant ones would kill the rest.
Not my cup of tea, but very nice tank and fish!
I showed this to my wife. She commented that you must be "another nut like you" (meaning me!) who thinks that it's normal for your house to always sound like the bathtub is overflowing.
She then concluded her assessment by commenting "Nice goldfish, though...why don't we have any?"