Mayaca fluviatilis grows in swamps and other wet areas from the Southern United States to South America. It is solidly established in the planted aquarium hobby and is available from many sources as well as from appropriate collection locations in its natural habitat. The iron requirement of M. fluviatilis makes it an indicator plant that can be relied upon to indicate if enough iron is present; if it's happy, all other species should be as well. Iron deficiency is indicated by shoots that are pale yellow or even white. Modest lighting is sufficient and CO2 supplementation is recommended.