inactive fish

Hey I currently have a Silver arowana around 8-10 inches maybe, in a 125g tank. He has been in the tank for about 2 months now. The problem I see is that the arowana sits in the top corner of the tank all day and I only see him swim when its dark at night. I stopped turning on the light because...

Is there a way to make them more active? They just stay at the bottom of the tank and don't do much. They are juveniles about an inch in length. Water conditions are fine. Living with plecos and feeder guppies. TEMPORARY HOUSING . Eventually moving to soemthing large with other predator fish. I...

Hello Everyone, meet blueberry. ... As you can see, he's active and interactive in this video. He always comes up to the glass, and bites my fingers if I put them in the tank. When I do water changes, he watches me closely to make sure I'm not "messing with his stuff." Recently, he's been...