I got 3 large males that came out of a species only tank / was a breeding tank , I have a 72x24x26 LxWxH , I have a mix African tank , 72hrs into establishing them in there new home they had no interest in eating NLS 2mm , the previus owner fed them pellets + flake , The fronts are 4 yr old , so I decided to see if I could (Break the seal) and get them to eat something/anything just to make them feel at home .... I dug up some fat earth worms in my yard and feed the tank OMG the fronts ate like they were starving to death (Witch they are not not yet anyhow) I hope this was a inspiration to them and a encouragement that is is ok to eat in there new home .