Japanese red stingray, Brown stingray, Japanese stingray, Estuary stingaree, Whip stingray, Dasyatis akajei (old name)
Family
Dasyatidae (whiptail stingrays)
Origin
North-west Pacific: Japan, Korea, China and Taiwan; shallow sand and mud, bays, reefs and estuaries.
Water
saltwater
Maximum size
200 cm
Temperature
15–25°C
pH
8.1–8.4
Hardness
Salinity SG 1.023–1.026
Care level
expert
Temperament
semi_aggressive
Reef safe
no
Care
Size: It reaches about 200 cm and needs a very large, long system: it is for public-aquarium-sized systems, not home aquaria. Most are under 1 m. Water: the list gives 15–25 °C. pH 8.1–8.4 and SG 1.023–1.026 are general marine guidance. Safety: the tail carries a venomous, serrated spine. A sting is very painful, though rarely dangerous to life. Never handle the ray by hand, net it with care, and get medical advice if stung. Conservation: IUCN Near Threatened, owing to fishing and slow breeding. 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/Hemitrygonakajei). Checked October 2026.
Diet
Mainly crustaceans, then small fish and worms. Feed chopped shrimp, fish and squid in large systems.
Breeding
Gives birth to live young, from 1 up to 10 per litter.
Compatibility and tank mates
Not reef safe: eats crustaceans and fish. Not suitable for home aquaria.
Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.
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Aquatic-Auctions (aquatic-auctions.com) is a UK online marketplace for aquarium and pond livestock and equipment: tropical and marine fish, corals, shrimp, snails and other invertebrates, aquatic plants, tanks, filtration, lighting and food.
Items are sold by auction, buy it now or classified advert, by hobbyist and business sellers in the UK.
Buyers pay sellers directly; Aquatic-Auctions does not hold the money. Hobbyist sellers must offer PayPal and may also take cash on collection. Business sellers take PayPal (required) or cash on collection, and bank transfer only once they have a seller rating of 50 out of 100, a company and pet-selling licence checked by Aquatic-Auctions, a bank account in the company's name, and bank details approved by Aquatic-Auctions.
Buyers are told to pay by PayPal Goods & Services, never PayPal Friends and Family, gift cards or crypto.
Live fish and other vertebrates must be sent by specialist live-animal couriers (for example APC Overnight or DX Express), never by Royal Mail. Some invertebrates and plants may go by Royal Mail Special Delivery or 1st Class within its rules.
Banned and invasive species (for example those on the GB invasive species lists) cannot be listed, and sellers must meet the site’s animal welfare standards.
Members must be 16 or over to buy (16 and 17-year-olds with a parent or guardian’s agreement); sellers must be 18 or over.
Business sellers show their address, company details and pet-selling licence to buyers. Seller ratings run from 0 to 100: +1 for each positive feedback, −1 for each negative.
The site includes a free community species wiki with care guides (water parameters, tank size, diet, temperament, breeding).
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