When choosing tubes for your gerbil aquarium, there are a few things to keep in mind. First, make sure that the tubes are made of a safe material, such as plastic or cardboard. Second, the tubes should be large enough for the gerbils to fit through comfortably. Third, the tubes should be placed in a way that allows the gerbils to easily climb in and out of them.
Here are a few tips for adding tubes to your gerbil aquarium:
* Start with a few tubes and add more as needed.
* Place the tubes in different parts of the aquarium so that the gerbils can explore them all.
* Connect the tubes together to create a maze or tunnel system.
* Add some toys or treats inside the tubes to encourage the gerbils to explore them.
Gerbils are very intelligent and curious creatures, and they will love exploring the new tubes in their aquarium. Adding tubes is a great way to provide your gerbils with more enrichment and to keep them entertained.