German Red Devil Angelfish

  • Red Devil Koi Angelfish is vibrant red angelfish with intricate Koi-like patterns.
  • Peaceful (except with other angelfish) & needs tall plants for hiding.
  • Thrives in well-maintained tanks (55 gallons minimum).
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SKU: 0999

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Original price was: $79.95.Current price is: $54.95.

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There seems to be a misconception! “German Red Devil Angelfish” isn’t a recognized species. Here are two possibilities:

  1. Red Devil Koi Angelfish:

This Angelfish is a selectively bred color variation of the common angelfish (Pterophyllum scalare). They are known for their vibrant red coloration and intricate patterns resembling Koi fish.

  1. Red Spotted Angelfish:

This is another popular color variation of the Pterophyllum scalare with a red body and black spots.

Description assuming Red Devil Koi Angelfish:


The captivating Red Devil Koi Angelfish adds a splash of color and elegance to any freshwater aquarium. Their striking resemblance to Koi brings a touch of fascination to your underwater world.

Scientific Name: Pterophyllum scalare (same as common angelfish)

Water Quality:

  • Thrive in well-maintained aquariums with stable water conditions.
  • Prefer slightly acidic to neutral water: pH 6.0 – 7.5
  • Moderate water hardness: GH 5 – 15 dGH
  • Moderate carbonate hardness: KH 3 – 8 dKH


  • Omnivores with a varied diet.
  • Offer high-quality flake food, pellets, and frozen or live brine shrimp, bloodworms, and vegetable matter.

Tank Mates:

  • Generally peaceful, but can be territorial with other angelfish.
  • Ideal tank mates include peaceful community fish like tetras, rasboras, gouramis, and corydoras catfish. Avoid fin nippers and very small fish.

Substrates and Tank Decorations:

  • Any substrate works, but fine gravel allows for easier plant root growth.
  • Provide plenty of tall plants like Amazon sword or Vallisneria for hiding and grazing.
  • Driftwood and rocks create a natural environment and offer additional hiding spots.

Suitable Plants:

  • Choose sturdy plants that can withstand some nibbling, such as Anubias, Java fern, or Vallisneria.

Sexing and Breeding:

  • Differentiating sexes can be difficult, especially for beginners.
  • Breeding can occur in a well-conditioned tank with spawning cones or flat surfaces for laying eggs.

Maximum Size and Longevity:

  • Grow up to 6-8 inches (15-20 cm) in height.
  • Can live for 8-10 years with proper care.


  • Generally peaceful but can be territorial towards their own kind and other angelfish.
  • They are graceful swimmers and will explore all levels of the tank.

Things to Consider Before Buying:

  • Minimum tank size of 55 gallons for a single angelfish or a well-matched pair.
  • Provide good water quality with regular water changes.

General Information:

  • Relatively easy to care for once the tank is established.
  • Susceptible to fin rot and other diseases in poor water conditions.

Fun Fact:

The tall, angelfish body shape is an adaptation for life in slow-moving waters with abundant vegetation.


My Family

Family Cichlidae

Where I am from

Origin Central America,

My behaviour

Social Peaceful

How do I breed

Breeding Egglayer

Can you keep me

Care Level Moderate

Potential of Hydrogen

pH Level Aquarium pH measures water acidity/alkalinity. 7 is neutral. Fish have pH preferences; maintain ideal levels for their health and stability. 6.0 – 7.5

General Hardness

GH Level GH (General Hardness) in aquariums measures minerals like calcium and magnesium. It affects fish health by showing water\'s mineral content. 5 – 15 dGH

Carbonate Hardness

KH Level KH (Carbonate Hardness) in an aquarium stabilizes pH. It acts like a shield, keeping the water conditions just right for fish. 3 – 8 dKH


Temperature Ideal temperature needed for fish 24°C – 28°C

How long will I live

Life Span 8 – 10 Years

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