glass tank

I was once watching a big Crab eating his dinner under a rocky ledge in a large glass tank.

Perhaps you have watched an open Anemone in a pool, or in a glass tank, and seen it at its meals.

Behind us in the window was a long glass tank of gold fish, into which from time to time a huge cat would reach an omnivorous paw.

If a number of very young Herrings or Eels were placed in a glass tank of sea-water, you would have a hard task to find them.

At home they keep a big glass tank on one of the bookcases in the study.