Blown glass aquarium with 2 fish who never die

Blown glass paperweight, decorative aquarium. Has two light blue fish with cobalt, coral, yellow and white seaweed. Heavy for its size, has trapped bubbles, no tag on bottom. Has small chip on bottom, see last photo. I didn’t even know it was there until I was cropping the close-up. Or maybe it happened when it was made? Smoke-free, pet friendly home.