I'm keeping Gymnogeophagus sp "Paso Pache" in an outdoor pond. They have survived night air temps in the 40s this spring in Milwaukee and spawned soon after. They are from te gymnogenys group endemic to Uruguay.
Water temps range from mid 70s during the day, to low 60s at night.
The pond is a 300 gal horse trough
Water temps range from mid 70s during the day, to low 60s at night.
The pond is a 300 gal horse trough