[trreherd]

The figure 8 puffer is a bracish water fish. So you cant keep it in a marine tank. It should have a 30 gallon tank with sand bottom,plants,and rock. If your looking for a small marine puffer check these out, a 40 gallon tank should be good.
http://www.liveaquaria.com/product/prod_display.cfm?pcatid=250&N=0