X10 Gold Dust Molly Fish Sml/Med 1" - 2" - Freshwater Fish Free Shippingnew_dfb_templateend_display_feedback_code_window x10 GOLD DUST MOLLY FISH SM MD 1" 2" FRESHWATER FISH FREE SHIPPING The Molly is a tropical fish that prefers a little salt in their water. A teaspoon of aquarium salt per 5 gallons of water will go a long way in helping them. You may also see them in saltwater tanks from time to time. There is a local reef store here that keeps black molly fish in a regular saltwater tank with similar sized species. The