Wrasse are known aquarium bailout artists, but many other fish jump from open-top tanks as well. And they may not be the fish you’d expect to see carpet surfing. For example, some hobbyists have reported fish like lionfish and clownfish jumping out of their aquariums. Eels are also known escape artists, as they can even get out of aquariums with glass tops. To keep fish in the tank, most aquarium keepers use a screen mesh material that covers the entire top of the aquarium. The mesh is usually small enough to keep most fish in, but is also open enough to let light in unrestricted.