I just got one of these yesterday, LFS was feeding it minnows and all live food. considering I have 8 glow light tetras in the tank I was a bit worried, but ABF minds his own business at the top, so long as no one comes up to bother him. I was told there pretty hardy, I even read some articles on line about a guy who had one jump out of the tank when he left the house for a smoke break or something, when he came back inside he found it dried and shriveled on the floor, it appeared lifeless(it escaped out a small hole cut for air tubing to get out of the tank) he just put it back in the tank and within 10 minutes it was back to normal.... Sounds to be like there pretty tough. I guess the biggest thing I found while researching and checking mine out in the last 24 hours is they need top floating plants to cruise around and hide in otherwise they may get stressed.
----anyone have one with a UGF? i have a power head at each end of the tank and the current is really not ideal for the ABF at the top, any advise at which directions I should I point the power heads and if the fin that the water shoots out of should be pointed down or up. thanks