A. sp"Inca50" = A. sp. "Inca" - High-finned Nijsenni The "high-finned" nijsseni is probably a member of the Apistogramma nijsseni group, along with A. nijsseni, panduro, lyretail I (leierschwanz I) and lyretail II (leierschwanz II). As such, it should be maintained in soft, acidic water. As a rule, this group is quite sensitive to water quality, so frequent partial water changes are important.