Chilean round ray (Urotrygon chilensis) care guide

Group
Marine fish
Other names
Chilean stingray, Blotched stingray
Family
Urotrygonidae (round rays)
Origin
Eastern Pacific coasts from Mexico to Chile.
Water
saltwater
Maximum size
41.9 cm
Temperature
24–27°C
pH
8.1–8.4
Hardness
Salinity SG 1.023–1.026
Minimum tank
680 litres
Care level
intermediate
Temperament
peaceful
Reef safe
no

Care

Tank: floor area matters far more than height. Give a deep bed of fine, smooth sand (at least 5 cm) to bury in, little or no rockwork, guarded heaters and pump intakes, a tight lid, and strong filtration and aeration, as rays are messy feeders. Avoid copper-based treatments, which rays and their relatives tolerate poorly. The list suggests at least 180 US gallons (about 680 litres). Water: 24–27 °C, pH 8.1–8.4, salinity SG 1.023–1.026. These are general marine aquarium figures for a tropical species, not species-specific values from the sources. Keep nitrate low and oxygen high. Behaviour: the list describes it as small and well suited to captivity. Safety: like other round rays it has a venomous tail spine (not stated in the article). Never handle it by hand and get medical advice if stung. Conservation: assessed by the IUCN (2020); the category is not given in the article. Selling: our policies require the adult size and long-term tank needs to be stated clearly in the listing. Large fish must travel by a specialist live-animal courier (see the Livestock shipping guide). Sources: Wikipedia, List of marine aquarium fish species (en.wikipedia.org/wiki/Listofmarineaquariumfishspecies); Wikipedia (en.wikipedia.org/wiki/Urotrygonchilensis). Checked October 2026.

Diet

Not covered by the article. Like other round rays it eats bottom invertebrates and small fish: offer chopped shrimp, clam, squid and worms.

Compatibility and tank mates

Not reef safe: eats crustaceans and other invertebrates. Keep with peaceful fish that will not nip it.

Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.

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