Iv got a 2" toungfish that has been living in my 55g brackish puffer tank and i want to move him into a freshwater 55g with my pollys. The toungfish was originaly in a freshwater tank. how can i get him back to fresh?
You'll need another tank, you just slowly reduce the salinity of the tank... start with hte same as his current tank... and adjust slowly over a month or more...
