The one you have Mobert, looks perfect. I'll have to check those ones out. That tequila bottle looks awesome. Is that sculpture hollow in the center of the bottle?
Yes, it is hollow and perfect if kids don't pick it up and shake it. My son does open the top every so often just to give the shrimp fresh air. The advantage of the globes though, is they have a magnifying effect and the shrimps racing around on the opposite wall are gigantic.
Thanks Davrx for posting the pics. Makes me want a few more shrimps.