Title says it all. Thanks for any input!!
Make sure that lid is completely covered, so zero chance of a leaping-out-of-tank escape attempt
Wow, does it do this to all fish? I had no idea..Do not add activated carbon or charcoal in your filter media. It may cause damage to your fish's finnages, and make it looks like the "burning" edges of a piece of paper. It may also cause your fish to develop hole in the head and lateral line diseases. Good luck and have fun with your new black arowana.