Golden Orfe

About

The golden orfe is a colour form of the ide, a large European river cyprinid, and it is sold in Lithuania under its wild name — meknė — as a palm-sized orange fish for a garden pond. The adult is the story. FishBase records a maximum of 85 cm standard length and 4 kg with a maximum reported age of 29 years; the USGS non-native species database gives 102 cm; Lithuanian Wikipedia says the body reaches 70 cm; Maidenhead Aquatics, a specialist pond retailer, quotes 60 cm+ as the maximum for the ornamental fish. Even the conservative end of that spread is a fish longer than most aquariums are wide, and FishBase says so outright in its aquarium note: at least ten individuals, a minimum tank length of over 200 cm, and not recommended for home aquariums. The same FishBase page also records that adults are solitary while juveniles are gregarious; we still set the group at ten, because that is FishBase’s own keeping figure and Wikipedia asks for a shoal too, and because a pond orfe kept alone spends its life hiding. Wikipedia's verdict is the same — too large for indoor aquaria, keep them outside as a shoal in a pond, and give them better-oxygenated water than koi or goldfish need. This is also a cold fish. FishBase's climate band is 4–20 °C and Maidenhead's is 4–22 °C, and Maidenhead's own selling point is that orfe will feed and function in much colder water than koi or goldfish. A heated indoor tank is the wrong end of that range in every respect. In Lithuania the wild ide is common in the Nemunas, Neris, Žeimena, Šventoji and the Curonian Lagoon, and Lithuanian Wikipedia notes the golden form has itself already been acclimatised here as a rare fish — which is the whole reason the release rules below matter.

Care

A pond fish, a shoal, and a jumper. Ten or more (FishBase's own figure), a pond of at least 8,000 litres with four metres of open swimming length and a metre of depth, powerful filtration, and constant water movement — a waterfall or stream is ideal, because Maidenhead flags high oxygen as this fish's special requirement and says it struggles in small ponds with slow-moving water. Keep the pond covered or netted where you can: Maidenhead calls orfe renowned for jumping out during summer storms. No heater; 12–20 °C is where it lives, and it feeds happily far colder than koi do. It will not eat plants, so a lushly planted pond is fine — but it will eat fish. Maidenhead notes that large specimens are predatory enough to make an impact on small fish while ignoring anything too large to swallow, and FishBase says larger ide feed mainly on fishes; koi and goldfish are the usual company, small natives are not. Use a dechlorinator and read the label on any pond medication: Maidenhead warns that orfe are unusually sensitive to heavy metals in tap water and to some treatments, and that exposed fish often survive with a permanently kinked spine. The rules: in Lithuania the ide is native and unprotected — it is not on the country's protected species list, and the amateur fishing rules allow five chub and ide combined per outing with no minimum size — but releasing or moving wild animals is separate. The Ministry of the Environment’s rules require advance notice to and approval from the Environmental Protection Department before translocating wild animals of any species or releasing wild mammals and birds, and a permit from the Environmental Protection Agency for introduction or reintroduction; a plain release into the wild of an animal that is not a bird or a mammal — a fish — instead carries a duty to consult the Department, the Agency or a research institution first. Tipping pond fish into a lake or a river falls under one branch or the other, never under neither. A golden orfe is the same species as a wild meknė, so a pond fish that washes into a ditch breeds straight into the native population. Elsewhere the same fish is treated as a risk: the USGS records it introduced to nine US states from 1877 onward with a Maine population deliberately eradicated in 1983, and a 1962 assessment recommending against its introduction to California on the grounds that it could become more of a problem than goldfish or common carp. Wikipedia records that it was illegally imported into New Zealand as eggs in the 1980s. Check what applies where you live.

Diet

Omnivore that becomes piscivorous with size: insects, snails and benthic invertebrates when small, roach and bleak when large. Pond flakes, pellets, sticks, live and frozen foods and insects in captivity. Does not eat plants.

Telling males from females

What works for this species, most reliable first.

• Belly depthA hint only · only on well-fed adults, and only as a comparison

  For most tetras, barbs and rasboras this is all there is: a conditioned female is deeper through the belly than a male of the same length.

Also in these lists

Similar species

Same category and the closest water parameters — if this species isn't quite it, start here.

Sold in Lithuania

These Lithuanian shops listed this species in their public catalogue (checked August 8, 2026). Stock moves — ask before you travel.

These links are unpaid: we get nothing for them and ask for nothing.

Frequently asked questions

What tank size does a Golden Orfe need?

A Golden Orfe needs an aquarium of at least 8000 litres (2113.4 US gallons) with a footprint at least 400 cm (157.5 in) long — for this species, swimming length matters as much as raw volume.

What water parameters does a Golden Orfe need?

Golden Orfe does best at 4–22 °C (39.2–71.6 °F), pH 6.5–8.5 and a general hardness of 8–25 °dGH.

What group size does a Golden Orfe need?

Golden Orfe is a social species — keep a group of at least 10 so natural behaviour emerges and stress stays low.

Is the Golden Orfe suitable for beginners?

Golden Orfe is a demanding species best attempted with some experience — it needs stable, closely watched conditions to thrive.

Sources

• FishBase — Leuciscus idus (Ide)
• Maidenhead Aquatics (Fishkeeper) — Golden Orfe, Leuciscus idus
• Wikipedia — Ide (fish)
• USGS Nonindigenous Aquatic Species — Leuciscus idus (Ide), species profile
• Vikipedija — Paprastoji meknė
• Medžioklė ir žvejyba — Žvejybos taisyklės, laimikio normos (2026)
• Lietuvos raudonoji knyga — Lietuvos Respublikos saugomų gyvūnų, augalų ir grybų rūšių sąrašas 2020 m.
• Lietuvos Respublikos aplinkos ministerija — Keičiasi laukinių gyvūnų, augalų ir grybų rūšių introdukcijos, reintrodukcijos ir perkėlimo reikalavimai