Boesemani Rainbows 4cm

Name: Boesemani Rainbows 4cm
Brand: Aquarium Haven & Brisbane Discus
SKU: RBOW-BOSRAIN
Price: 25.0 AUD
Availability: OutOfStock

Boesemani Rainbows 4cm are young, active rainbowfish that grow into stunning adults with a bold blue front half and rich orange‑yellow tail. At around 4cm, these Boesemani Rainbows are a perfect grow‑out size for planted community tanks, quickly settling into groups and showing more colour as they mature in clean, well‑filtered water.

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Boesemani Rainbows 4cm are young, active rainbowfish that grow into stunning adults with a bold blue front half and rich orange‑yellow tail. At around 4cm, these Boesemani Rainbows are a perfect grow‑out size for planted community tanks, quickly settling into groups and showing more colour as they mature in clean, well‑filtered water.

Add movement and colour to your aquarium with Boesemani Rainbows 4cm. Also known as Boeseman’s Rainbowfish or Bicolor Rainbowfish, this classic species is famous for its split colour pattern – a deep blue front half and bright orange‑yellow back half that looks incredible in a planted tank.

At around 4cm, these Boesemani Rainbows are juveniles, so you’ll get to enjoy watching them grow, fill out and develop their full adult colours in your care.

Natural Habitat and Behaviour

In the wild, Boesemani rainbows are found in shallow, swampy, densely vegetated waters, where they cruise in loose shoals and pick at small invertebrates and algae. In the aquarium, Boesemani Rainbows 4cm are:

Active mid‑water swimmers
Best kept in groups of 6 or more
Generally peaceful, but males can be territorial with each other

To reduce aggression, keep a single male with several females, or a larger group in a bigger tank so males can display without constant conflict.

Tank Requirements for Boesemani Rainbows 4cm

To help Boesemani Rainbows 4cm thrive:

Tank size: Minimum 3ft (around 120L) for a group, larger is better
Temperature: 24–28°C
pH: Neutral to slightly alkaline (around 7.0–8.0)
Hardness: Prefer medium to hard water
Aquascape: Open swimming space with plants, wood and some shaded areas

Good filtration and regular water changes are essential – Boesemani are active fish and appreciate clean, well‑oxygenated water.

Suitable Tank Mates

Boesemani Rainbows 4cm are ideal for peaceful community setups with similarly sized fish. Good tank mates include:

Larger, peaceful tetras
Rasboras and danios
Peaceful barbs
Corydoras and other bottom‑dwelling catfish
Non‑aggressive dwarf cichlids such as Kribensis

Avoid fin‑nippers and very small, delicate fish that may be outcompeted at feeding time.

Feeding Boesemani Rainbows 4cm

In nature, Boesemani rainbows feed on small crustaceans, insects and algae. In the aquarium, Boesemani Rainbows 4cm will happily accept:

Quality tropical flakes and pellets
Small granules and micro‑pellets
Frozen foods such as brine shrimp, daphnia and bloodworm
Occasional live foods as a treat

Offer small amounts 1–2 times daily, ensuring all food is eaten within a few minutes. A varied diet will help bring out the best colour and condition in your Boesemani Rainbows.

General Care Tips for Boesemani Rainbows 4cm

Keep Boesemani Rainbows 4cm in groups for confidence and natural behaviour
Provide a secure lid – they can jump when startled
Maintain stable water parameters and avoid sudden changes
Combine open swimming areas with plants and decor for cover

With the right care, your Boesemani Rainbows 4cm will grow into vibrant, eye‑catching adults that become a true centrepiece in your community aquarium.

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