Well, still haven't got my 12 nano to work even after all the advice I've been given here (thanks!), so I'm gonna start moving what's left into my 90. I've already prepared some by moving the chocolate chip into solitary confinement, aka the sump! But should I also move the pink urchin? Will he eat zoas, GSP, or frogspawn? Maybe as a last effort for the nano, does anyone think going from PC to LEDs could have led to nothing growing, and just slowly dissapearing?