have to get this answer have an awesome deal, my local fish store is literaly giveing away some puffer fish the ordered too many no one really wants to buy them and i have a 20 gallon tank with really nothing in it save maybe some tetras, but i dont have it set up to be brackish can the puffer(or puffers if i decide to get more than one) live in a freshwater tank while i am converting it to brackish? The types of puffers they are giveing away are green spotted and figure eight i need an answer asap before they all get taken.