Cichlids · Julidochromis

Regan's julie

Julidochromis regani · Lake Tanganyika: lake-wide, shallows to 5 m over sand and scattered rocks

Photo: Regani, Public domain, via Wikimedia Commons

The Regan's julie (Julidochromis regani) is a freshwater fish from Lake Tanganyika: lake-wide, shallows to 5 m over sand and scattered rocks, where it lives in lake habitat. Adults reach about 13 cm (5.1 in). Keep it at 23–27 °C (73–81 °F) and pH 7.5–9, with a gentle current. It is territorial and does best in a group of 2 or more. It eats most foods: flakes, small pellets and frozen foods.

At a glance

Water temperature

23–27 °C 73–81 °F

7.5–9 hard, alkaline water

Adult size

13 cm 5.1 in

Swims ≈

Bottom mostly on the floor and in caves

Keep together

2 or more a shoal feels safe

Current ≈

Gentle a steady gentle flow

Food ≈

Eats most foods

Temperament

Territorial

Regan's julie

≈

Cichlids · JulidochromisLC

Hard water. Needs hard, alkaline water, like its rift lake.

Regan's julie

Julidochromis regani

Lake Tanganyika: lake-wide, shallows to 5 m over sand and scattered rocks · lake

Temperature: 23–27°C
pH: 7.5–9
Adult size: 5 in · 13 cm
Flow: Gentle
Swims: Bottom
Temperament: Territorial
Diet: Omnivore
Group: 2+
Status in the wild: Least concern

Hard water. Needs hard, alkaline water, like its rift lake.

Scan for the full profile
savethelittlefish.org/species/regani-julie/

Photo: Regani, Public domain

Regan's julie — **Print it and tape it to the glass.** Visitors can see what lives in the tank, and the QR code on the back opens this page.

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Sources

We name everyone whose work is on this page. Where sources disagree, we show the best one: a scientific paper first, then aquarium references.

Temperature, ph, adult size, swim level, habitat, group size, temperament, diet, behaviour, home range Seriously Fish: Julidochromis regani profile Website
Water flow, conservation status, adult size, home range FishBase: Julidochromis regani summary Website
Photo Regani, Public domain Wikimedia Commons
Map of rivers and countries Natural Earth public domain map data Map

Know a good source for this fish? Tell us

Tank mates

Checked against a roomy 300 L planted tank with moderate flow and plenty of caves. Your own tank may change the answer: try it in Your tanks.

Good together

Keep apart

Aggressive and will eat the regan's julie

Dovii
Will eat the regan's julie

Peacock bass
Need a different pH

Agassiz's dwarf cichlid Angelicus L136 Cardinal tetra Chili rasbora
Need different temperatures and need a different pH

Altum angelfish
Aggressive

Auratus

In the hobby

Where to find it

No store or breeder we know of has it right now.

Run a store? List the fish you usually have. Breed fish? List your fry.

Tanks with this fish

No shared tanks have this fish yet. Share yours from Your tanks.

From keepers

Notes appear here when a keeper shares a tank with this fish and writes about it.

Questions keepers ask

How big does a Regan's julie get?

About 13 cm (5.1 in) as an adult.

What temperature does a Regan's julie need?

23–27 °C (73–81 °F).

What pH does a Regan's julie need?

pH 7.5–9.

Does a Regan's julie need to be kept in a group?

Yes. Keep at least 2.

Is the Regan's julie aggressive?

It is territorial. Give it its own cave or space.

What does a Regan's julie eat?

It eats most foods: flakes, small pellets and frozen foods.

Where does the Regan's julie come from?

Lake Tanganyika: lake-wide, shallows to 5 m over sand and scattered rocks.

What fish can live with a Regan's julie?

Good tank mates include Candy stripe (L015), Leopard frog (L134), Amano shrimp, Bolivian ram, Bronze corydoras.

All the numbers

Temperature min (°C)	23	Sourced
Temperature max (°C)	27	Sourced
pH min	7.5	Sourced
pH max	9	Sourced
Adult size (cm)	13	Sourced
Flow	Moderate	Estimate
Swim level (top / middle / bottom)	bottom	Estimate
Habitat	lake	Sourced
Smallest happy group	2	Sourced
Temperament	Territorial	Sourced
Diet	Omnivore	Estimate
Behaviour tags	hard_water	Sourced

Some values are estimates from typical hobby ranges and haven't been checked against a source yet.