x2 what Kevin said.. I had issues with my knife at night either harassing the gar or simply spooking them( they are quiet active nocturnal fish) But bichir as a general rule make great tank-mates. and a 15" FLG should convert to other foods readily particularly if it has tank-mates eagerly eating non-live, try floating foods or peices of fish cut into bite sized chunks. frozen krill are also a big treat for my gar and eagerly eaten, and they get live a few times a month still.