POTENTIAL TANKMATES
Other Central American Cichlids, like those from the genera Vieja, Chiapaheros, and Amphilophhus are equally large, aggressive, and territorial. Hence, they make good candidates. Large South American Cichlids, like the Pike Cichlids (genus Crenicichla), Severums (genus Heros), Oscars (genus Astronotus), Green Terrors (Andinoacara rivulatus), and Parrot Cichlids (Hoplarchus psittacus) are also good tankmates.
Expect that fights will break out every now and then, so it would be a good idea to load the tanks with driftwood that can provide escape routes for bullied Cichlids.
Lage Tetras like Red Flagtail (Semaprochilodus insignis), Red Hooks (Myloplus rubripinnis), Black Barred Red Hook (Myleus schomburgkii), Silver Dollars (Metynnis argenteus), Striped Silver Dollars (Metynnis fasciatus) and Banded Leporinus (Leporinus fasciatus) can provide a lot of movement in the tank that would distract the Cichlids from one another.
Tough Catfishes, especially those with thick armor, are definite candidates to the tank. The untouchable Armored Catfishes like Pleco (Hypostomus plecostomus), Royal Plecos (genus Panaque), and Sailfin Pleco (Pterygoplichthys gibbiceps) are good algae eaters and are well protected with armor that can withstand the aggressiveness of these large Cichlids.
Thorny Catfishes like Irwini Catfish (Megalodoras uranoscopus), Ripsaw Catfish (Oxydoras niger), Granulated Catfish (Pterodoras granulosus), and the Striped Raphael Catfish (Platydoras armatulus) are also good choices.