I have a 150 and it's been running since april. i had a PO4 and cyano problem but i treated the tank with red slime remover and now have my phosban reactor running and everything is back to normal. my question is how do i seed my refugium and would a 10K pc be a good enough light source for it. btw my sump is 55gals and i would say my refugium takes up half of it.