i didn't think you needed flow for raising fry. ive seen people with a 10g tank with a heater and sponge pump and that is it. just do water changes daily.
like fishtal said though greenwater will most likely not work in your cube so a seperate 10g tank for them would be good.
$9.99 at meijers for a 10g tank.
You don't need flow for raising fry. You do need flow for everything else she has in that tank as it's her display tank.
good point. i guess the lack of details made me think that though. sounded to me like a pair of clowns was all that is in the tank.
Re-reading I might be wrong as well, she said after being moved from the main tank to the Biocube, but I thought I saw pics of her Biocube and it had coral and what not in it... If not I rescind my comment.