RoboSnail: A Robotic Aquarium Cleaner that Scoops-up Slime? Yes! - SolidSmack
Robot Fish Aquarium Cute Silicone Fish Ornaments Artificial Round Rabbit Fish Floated Underwater Fish Tank Landscape Decoration - Decorations & Ornaments - AliExpress
MOAI:Robot for Your Aquarium by MOAI — Kickstarter