That temperature is ideal. Where abouts are you located, ckk125? Could you add your location to your profile for us when you get a minute? Thanks!
Don't be too worried if you don't see these fish eat straight away. Do try feeding them in the darkness and try shrimp/prawn based foods. When I rehomed Marge & Stripes (11.5 and 10.5" respectively) who had outgrown their previous owners tank, Marge took 7 weeks to start feeding (yes
7 weeks!). Admittedly, she did have much more body fat on her than your fish, but it just goes to show that these bigger specimens can take a very long time to adjust to new surroundings. Having smaller specimens around them who are actively feeding will help the process, but don't be surprised if it is a few weeks before you see them really interested in food. We tried Marge on a huge variety of foods before she started feeding, and the only thing that eventually got her interested was prawns (the sort you would use in a prawn/shrimp cocktail). Here you can see a video of my fish eating prawns:
http://s88.photobucket.com/albums/k183/ ... CN1258.flv
Emma