i am going to set up a 20long for south american cichlids, but my question is, would they look good with white sand, i have black sand in my 15 gallon but i like the look of white sand like pool filter sand, and what fish would look best in the 20long and what could i put in there, i have had bolivain rams, and apistos, but no blue acaras, or golden eyes your i would realy like to have a breeding pair of key holes