Silver Dollar

Approx. 1.5″ – 2″ The Rummynose, also known as “firehead tetras“, are found in the upper and lower Amazon River basins, the Rio Negro and Rio Meta basins, and the Orinoco River. Rummynose Tetras live in the quiet, tannin stained, slow moving creeks and “blackwater” river areas of Brazil and Columbia.  They prefer the soft, acidic water that is the result of decayed vegetation and leaf litter, and frequent areas with an abundance of aquatic plant life and hiding places. When housed in a heavily planted aquarium environment, Rummynose Tetras are benefited by placing a piece of water logged driftwood into their tanks. When kept in a suitable environment, the ruby red head that is the namesake for these fish becomes more vivid and pronounced. Rummynose Tetras are a silvery, torpedo shaped fish with two black and white stripes on each caudal fin and horizontal black and white stripes on the tail fin. Its head is a deep iridescent red that continues from the iris of the eye, past the gill plate to mid body. Its name is derived from the word “rummy“, which was the name given to rum addicted alcoholics who often had red (rummy) noses. Rummynose Tetras are shoaling fish that seldom exceed 2” in length.  They are sensitive to water hardness, pH, and water temperature fluctuations and are best kept in schools of 6 or more fish. Rummynose Tetras are a hardy fish that require only minimal care when housed in a densely planted 20 gallon tank with plenty of gentle water filtration. Keeping the water warm (between 73 to 80 degrees), the pH between 6.0 to 7.0 and providing weekly 25% water changes will keep your Rummynose Tetras healthy. When Rummynose Tetras are stressed, the vivid red on their noses will become drab and eventually disappear.  This can occur when the fish are first introduced into your aquarium, but after a couple of weeks they will regain their beautiful ruby red “nose” if water conditions are optimal. Rummynose Tetras will eagerly accept commercial flake foods, live brine shrimp, tubifex worms, mosquito larvae and a variety of freeze dried and frozen foods. Minimum Tank Size: 15 – 20 gallons Care Level: Easy Temperament: Peaceful Water Conditions: 72-80° F, KH 2-6, pH 5.5-7.0 Max. Size: 2″ Color Form: Red, White Diet: Omnivore Compatibility: Ok with large non agressive fish Origin: South America, Bred in Europe and Southeast Asia Family: Characidae Lifespan: 5 to 6 years Aquarist Experience Level: Experienced

Size: Approx. 2" Minimum Tank Size: 55 gallons Care Level: Moderately Difficult Temperament: Semi aggressive Aquarium Hardiness: Hardy Water Conditions: 74-80° F, KH 10-20, pH 7.8-9.0 Max. Size: 4″ Color Form: Black, Blue, Orange Diet: Carnivore Compatibility: Ok with small to medium-sized Tanganyikan cichlids Origin: Lake Tanganyika, Africa Family: Cichlidae Lifespan: 8-10 years Aquarist Experience Level: Intermediate to Experienced

Approx. 0.5"

Best kept in a well-decorated set-up with aquatic vegetation and woody structures. The addition of some floating plants to diffuse the light entering the aquarium also seems to be appreciated and the addition of dried leaf litter can add a natural feel. Filtration, or at least water flow, should be relatively gentle, and use a soft substrate if possible since Oreichthys species have miniscule sensory bristles on the lower jaw which are used when foraging.

Unsuitable for most community aquaria as it may be intimidated or outcompeted for food by larger or more boisterous tankmates. Small, peaceful cyprinids such as Trigonostigma or Boraras species make good choices and we suspect it will also do ok with many South American characins, Otocinclus or pygmy Corydoras catfishes. Potential additions from the Ganges basin include Badis badis, Pangio pangia, and Colisa chuna. Although gregarious by nature it’s a shoaling rather than schooling fish which develops a distinct pecking order and rival males will exhibit some interesting sparring behaviour in captivity. It’s best maintained in a group of 8 or more but the tank must be decorated in such a way that many broken lines of sight are provided. If kept singly, in a very small group or in cramped conditions it can become withdrawn and subdominant fish may be bullied incessantly. Will accept dried foods of a suitable size but should not be fed these exclusively. Daily meals of small live and frozen fare such as Daphnia, Artemia, and suchlike will result in the best colouration and encourage the fish to come into breeding condition. Temperature: 24 – 28 °C pH: 6.5 – 7.5 Hardness: 90 – 268 ppm