Which are the most tolerant aquarium fishes to hypoxia?

In the current paper we report on the ecophysiological adaptation of the lyretail panchax(Aphyosemion australe) and Gardner’s killifish (Fundulopanchax gardneri) to hypoxia. Their adaptation tohypoxia is real and different from that of Osphronemidae or Callichthyidae which is based on breathingatmospheric air.