Cuban Gar (Atractosteus tristoechus) care guide

Group
Freshwater fish
Family
Lepisosteidae
Water
freshwater
Maximum size
200 cm
Temperature
22–28°C
pH
6–8
Hardness
3–18 dGH (estimated)
Minimum tank
3000 litres
Temperament
predatory

Care

Cuban Gar: minimum 3000 L aquarium; maintain 22–28 °C, pH 6–8, and 3–18 dGH (estimated). Provide a secure, spacious specialist aquarium with robust filtration and avoid prey-sized tankmates. Care level: Expert.

Diet

Carnivore: appropriately sized meaty frozen or fresh foods and carnivore pellets; avoid feeder fish and overfeeding.

Compatibility and tank mates

Avoid prey-sized tankmates; use a secure specialist setup.

Last updated 29 September 2026. Community-edited care guide on Aquatic-Auctions.

About Aquatic-Auctions

  • 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 can only take PayPal or cash on collection. Business sellers can take PayPal or cash on collection, and bank transfer only once they have 50 sales, 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).
  • Aquatic-Auctions is run by Etavonni Tech Limited trading as Aquatic-Auctions (company number 10204188), Aldershot, Hampshire, UK. Contact: [email protected].