Home

/

Fish species

/

Convict Cichlid

Convict Cichlid

Breed InfoHabitatNutritionHealth

Origin

Central America

Habitat Size

50-150 Liters

Water Type

Fresh Water

Water Temperature

24º-27ºC

Cost in India

₹80 - ₹150

Size

2 - 6 inches (Small)

Diet

Omnivore

Two Convict Cichlids one with faded stripes swimming near gravel and rocks in an aquarium
written by image

by Happy Pet TeamUpdated on 2 Dec 2025

The convict cichlid (Amatitlania nigrofasciata) is the most sought-after freshwater aquarium fish, recognised by its black stripes on a bluish-grey or grey colour. They owe their "convict" tag to their prison-jacket-like appearance. The males have pointed fins and are more elongated overall, and the females are slightly smaller, with orange- or pink-bellied females at spawning. Their hardness and aberrant behaviour attract the aquarist, but their obnoxiousness renders them more suitable for an experienced fishkeeper.

Origin of the Convict Cichlid

They are native to Central America and live in Honduran, Guatemalan, Salvadoran, and Nicaraguan lakes and rivers. They like to live in rocky places with crevices and sunken wood where they can breed and hide. Their adaptability has made them one of the world's most domesticated cichlids.

Temperament and Compatibility of the Convict Cichlid

Convict cichlids are very territorial and will be snappish, particularly when breeding. Active in the tank but not community fish to be kept.

  1. Good tankmates: large catfish (plecos), powerful barbs, or other cichlids of similar hardness
  2. Do not keep as tank mates: small, delicate fish such as tetras, guppies, or angelfish
  3. Breeding pairs: it's best to keep them apart because aggression is at worst when defending fry

Price Range for the Convict Cichlid

Convict cichlids are inexpensive and are abundant in numbers. They cost between ₹300 to ₹800 (US $5–12) based on size and origin. Because they breed well in the aquarium, they are less expensive.

Characteristics

Temperament

Aggressive

Friendly

Compatibility with other fishes

Not Friendly

Super Friendly

Habitat Size

Small

Large

about image

Habitat Requirements of the Convict Cichlid

Initial Setup Cost

₹4,000 - ₹12,000

Water Temperature

24º -27ºC

Water Type

Fresh Water

PH Level

6.5 - 8

Tank Setup

Convict cichlids are freshwater fish that thrive in aquariums replicating their natural environment. A 30-gallon tank is the minimum for a pair, but a 50-gallon or larger tank is better if you plan to keep multiple fish or encourage breeding. More space allows them to establish territories and reduces conflict.

Water Conditions

Convict cichlids are hardy but need stable conditions to remain healthy. The recommended parameters are:

  1. Temperature: 22–28°C (72–82°F)
  2. pH level: 6.5–8.0
  3. Hardness: 10–15 dH

Although they tolerate some variation, sudden fluctuations in water quality can cause stress and illness.

Environment Needs

These cichlids are natural diggers that rearrange their surroundings. A sandy or fine gravel substrate is ideal. Decorate the tank with caves, rocks, driftwood, or clay pots to provide hiding spots and breeding spaces. While plants can be included, convict cichlids often uproot them, so stick to hardy species like Java fern or Anubias that can be attached to hard surfaces. Standard aquarium lighting is sufficient.

Essential Equipment

Aquarium tank

Water filter

Heater

Light

Substrate

Nutritional Guide for the Convict Cichlid

Avg Monthly Expenses

₹80 - ₹ 150

Convict cichlids are omnivorous and thrive on a balanced diet. Include:

  1. Staple food: high-quality cichlid pellets or flakes
  2. Protein: frozen or live foods such as brine shrimp, bloodworms, or blackworms
  3. Vegetables: blanched spinach, peas, or zucchini for fiber and vitamins

Feeding tips:

  1. Feed once or twice daily
  2. Offer only what they consume in two minutes
  3. Rotate foods to prevent deficiencies
  4. Remove leftovers to maintain water quality
about image

Health & Care for the Convict Cichlid

Common Health Issues

Fin rot

White spot / ick

Parasitic infections

Bacterial infections

Swim bladder disease

Hole in the head disease

Signs of good health

Active

Bright coloration

Good apetite

Signs of sickness

Loss of appetite

Dull coloring

Tattered fins

Swimming abnormally

Lethargic behaviour

Ich (White Spot Disease)

Ich is a parasitic infection that causes tiny white cysts on the skin and fins of fish.

  1. Possible Symptom: White spots on the body or fins, rapid gill movement, rubbing against surfaces.
  2. Cure: Raise tank temperature slightly (to speed up the parasite’s life cycle) and use an anti-parasitic medication. Quarantine affected fish if needed.

Fin Rot

Fin rot is a bacterial infection often caused by poor water quality or stress.

  1. Possible Symptom: Torn, frayed, or clamped fins that may appear discolored.
  2. Cure: Improve water quality with regular changes, use antibacterial treatments, and reduce overcrowding.

Bacterial or Fungal Infections

These infections usually occur when the fish’s immune system is weakened, often due to stress or injury.

  1. Possible Symptom: Faded coloration, cotton-like growths, lethargy, or excessive hiding.
  2. Cure: Isolate the affected fish, treat with antibacterial or antifungal medications, and ensure strong filtration and stable water conditions.

Parasites (Flukes or Worms)

Parasites can attach to the gills or body, causing irritation and weakening the fish over time.

  1. Possible Symptom: Loss of appetite, weight loss, rapid breathing, or flashing (scratching against objects).
  2. Cure: Use appropriate anti-parasitic treatments and quarantine infected fish to prevent spreading.

Prerequisites for a Fish

Adequate tank space

Effort & commitment

Cleanliness

Enriching Environment

written by image

Written by

Happy Pet Team

Author

Team Happy Pet is a passionate collective of pet experts, enthusiasts, and advocates dedicated to sharing trusted and insightful content.

Our cont 

Frequently Asked Questions

What do Convict Cichlids eat?

They are omnivores and thrive on a diet of high-quality flakes, pellets, live or frozen foods like brine shrimp and bloodworms, and vegetables such as spinach and peas.

Are Convict Cichlids aggressive?

Yes, Convict Cichlids are known for their aggressive and territorial behavior, especially during breeding periods.

Can Convict Cichlids be kept with other fish?

While it is possible to keep them with other fish, their aggressive nature requires careful selection of tank mates. It's best to choose robust, similarly sized fish and provide plenty of hiding places.