Wal-Mart needs to have people with experience in that section. They once told me that a Pacu only grows to 8" and they can live in a 10g tank. Sorry to get off topic, but I went to Wal-Mart the other day looking for a knife. There was a guy helping out another guy, so I waited. The phone rings and he picks up. Now...I don't really know what they were talking about, but I heard, "Yeah...I shot a dog once with that gun. You might even consider getting a bowie. That might do the job." WTF!!! And he continued to talk on the phone and ignore me. Later I heard him say to the guy on the phone that they lost the key to the knife drawer, so I wasted 20 minutes listening to this piece of crap talking about possibly killing animals!