hard decision, they both have great qualitys. both get large, around 15" on average maximum size for both species males kept in aquaia. Both get great colors if properly kept. Female festea's have OUTSTANDING color, that rivals that of salvini's. Male Rt's look like a very badass fish in general. personally i say festea's are probably a cooler fish to keep, being that large breeding are much more rare to see, and large jaguars are a dime a dozen.