What is the difference between a green spotted puffer and a green puffer?
Well, if it’s either of those species, it’s NOT a freshwater puffer – both are brackish, needing close to full marine-strength saltwater as adults, although they’re born in fresh/lightly brackish water. Stores sell these as “freshwater” because they usually have tanks that are connected through a common plumbing, so they aren’t able to give them a proper brackish environment. As juveniles, they can “survive” a few weeks of freshwater, but it’s in the best interests of the fish to give it increasing amounts of salt. I don’t know what you have your fish in now, but it should be a cycled tank (if you aren’t familiar with this term, it mean adding an ammonia source to establish the beneficial bacteria that convert the toxic compounds from fish wastes (ammonia and nitrite) to the less harmful nitrate – puffers don’t have scales, and are extremely sensitive to these in water. They are also territorial and become aggressive as they mature, so you won’t be able to keep it with your frog – he’l
