The Puffer Forum

I bought this new tank because I don't have room for a long tank anymore. In my old apartment, the tank was in the spare bedroom where the only time I would see it was when I fed them or worked on the tank. I switched to this new tank so it could actually be out in the living room. So setting up the...

I was told that as the knife grows it leeches needed minerals out of the water and if particular mineral concentrations in the water drop low enough, it will stunt growth. I was advised to perform a small weekly water change to ensure that the mineral concentrations stay up. Anyway....the question: ...

I should have been a little more clear in my other post. All my fish (the knife, the tetras and a small algae eater) are currently in a standard 40 Gal tank, and it is no where close to being crowded or over stocked. The cube tank is a new tank that I am transfering the existing fish to. I measured ...

I currently have a 30 gal cube tank (18x20x21) that is home to a brown knife (Xenomystus nigri), and a few blood fin tetras. My wife has fallen in love with puffers and we want to add one to the tank. Right now she really likes f8's, but I'm concerned that f8 likes slightly brackish water but the kn...