So hello I am new and I have a Green Spotted puffer for about 3 months now in my Freshwater fish with 5 Zebra and 2 guppies. Now I have been going over the internet like mad and trying to find out which puffer I have. Now there is 2 different species being sold Green Puffer(t. fluviatilis) and Spotted Green Puffer (T. nigroviridis) and I read that the Nigrovirdis is more a of a freshwater to brackish version and the Fluviatillis is Brackish to Full Salt I am trying to figure out which one I have here is a pic.