I recently got a ten gal. aquarium for 1.50 with a heater 2 filters, fake plants, and a crack. I sealed it with a glue gun, and filled it up. I added gravel, snails, and floated the fish. And it leaked. So I emptied it, and put things back to normal. I need to get silicone glue. I got the fish for an experiment. A harmless one, of course.