I know its waaay after the fact, but I would have went brackish (for a taste of something different), or apistos (again, for a taste of something different). There, thats my two cents!
i am doing brackish just after i get my cichlid tank this summer.as for apistos maybe sometime next year when i do the amazon tank. i dunno. ilkl see then. my whole summers pay is already spent on the 55 and 20g.ill mail order the stuff. found this great site www.petsandponds.com. they got ac 500s for 60$ its worth it.