Extensor Foot Tendons. In the foot diagram below, the main tendons on the top of the foot are labeled. The group of tendons are called the extensor tendons and are responsible for elevating the toes and flexing the ankle up (dorsiflexion).
Dwarf puffers are quite hardy and will tolerate varying water conditions but obviously will do best, as with any fish, in optimum water conditions. They do best at temperatures of 80/26 degrees with a ph of at least 7.
Water. First off, green spotted puffers are brackish fish. Even though many pet stores sell them as freshwater fish, they are not by any means. When keeping your puffers, you must be sure to have some salt in the water. A hygrometer is a must for these fish. I think you can get one for about $4 from a pet store.