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🐠 Curated Knowledge Base

Aquarium Species Care Directory

Master the art of fish keeping. Discover expert water parameters, tank setup recommendations, diet requirements, and compatibility guides for freshwater and marine species in Kerala.

Cichlids

4 Species
Flowerhorn Cichlid
Intermediate

Hybrid (Cichlasoma spp.)

Flowerhorn Cichlid

The Flowerhorn Cichlid is a man-made hybrid fish known for its vibrant colors and the prominent 'kok' or nuchal hump on its head. Highly intelligent and interactive, these 'water puppies' are a favorite among aquarium enthusiasts in Kerala and worldwide.

Min Tank

55-75 gallons

Max Size

12-16 inches

Nature

Aggressive

🌡️ 26°C - 30°CExplore Guide →
Oscar Fish (Astronotus ocellatus)
Intermediate

Astronotus ocellatus

Oscar Fish (Astronotus ocellatus)

The Oscar is renowned as one of the most highly intelligent and personable cichlids in the aquarium hobby. Known for their puppy-like behavior, they frequently interact with their owners, beg for food, and display distinct moods. Popular strains include Tiger Oscar, Red Oscar, Albino, and Lemon Oscar.

Min Tank

75 gallons

Max Size

12-14 inches

Nature

Semi-Aggressive / Territorial

🌡️ 24°C - 28°CExplore Guide →
Freshwater Angelfish (Pterophyllum scalare)
Intermediate

Pterophyllum scalare

Freshwater Angelfish (Pterophyllum scalare)

Angelfish are the 'supermodels' of the aquarium. With their tall, graceful fins and arrowhead shape, they bring elegance to any tank. While peaceful when young, they are still cichlids and can be territorial during breeding.

Min Tank

30-50 gallons (Tall tanks)

Max Size

6 inches long (8-10 inches tall)

Nature

Semi-Aggressive

🌡️ 25°C - 30°CExplore Guide →
African Cichlids (Malawi / Tanganyika)
Intermediate

Cichlidae (various)

African Cichlids (Malawi / Tanganyika)

African Cichlids are the saltwater-fish equivalents of freshwater. Known for their electric colors and complex social structures, they are a favorite among high-end hobbyists.

Min Tank

55-75 gallons

Max Size

4-12 inches (varies)

Nature

Aggressive / Territorial

🌡️ 24°C - 28°CExplore Guide →

Livebearers

4 Species
Guppy Fish (Poecilia reticulata)
Easy

Poecilia reticulata

Guppy Fish (Poecilia reticulata)

Guppies are the world's most popular aquarium fish, beloved for their infinite color patterns and ease of breeding. In Kerala, guppy breeding is a massive hobby, with high-end strains like Full Red, Blue Grass, and Dumbo Ear being highly sought after.

Min Tank

5-10 gallons

Max Size

1.5-2.5 inches

Nature

Peaceful

🌡️ 22°C - 28°CExplore Guide →
Molly Fish (Poecilia sphenops)
Easy

Poecilia sphenops

Molly Fish (Poecilia sphenops)

Mollies are versatile and hardy livebearers. Available in Black, Sailfin, and Balloon varieties, they are famous for their ability to live in both freshwater and brackish water. They are excellent algae eaters and very active swimmers.

Min Tank

20 gallons

Max Size

3-5 inches

Nature

Peaceful

🌡️ 24°C - 28°CExplore Guide →
Platy Fish (Xiphophorus maculatus)
Beginner

Xiphophorus maculatus

Platy Fish (Xiphophorus maculatus)

Platies are the perfect beginner fish. Compact, colorful, and peaceful, they come in endless color variations like Sunset, Mickey Mouse, and Tuxedo. They are extremely social and thrive in groups.

Min Tank

10 gallons

Max Size

2-3 inches

Nature

Peaceful

🌡️ 22°C - 28°CExplore Guide →
Swordtail (Xiphophorus hellerii)
Easy

Xiphophorus hellerii

Swordtail (Xiphophorus hellerii)

Swordtails are named for the long, sword-like extension on the lower tail fin of the males. They are fast, energetic swimmers that add a lot of movement to an aquarium.

Min Tank

20 gallons

Max Size

4-5 inches

Nature

Peaceful / Semi-Active

🌡️ 22°C - 28°CExplore Guide →

Anabantoids

1 Species
Siamese Fighting Fish (Betta splendens)
Easy

Betta splendens

Siamese Fighting Fish (Betta splendens)

Bettas are iconic for their long, flowing fins and fierce territorial nature. Known as the 'Jewels of the Orient,' they are available in stunning forms like Halfmoon, Crowntail, and Plakat. They are one of the few fish that can breathe air from the surface.

Min Tank

5 gallons

Max Size

2.5-3 inches

Nature

Solitary / Aggressive (Males)

🌡️ 25°C - 30°CExplore Guide →

Monster Fish

8 Species
Arowana (Dragon Fish)
Advanced

Osteoglossidae family

Arowana (Dragon Fish)

The Arowana is the ultimate symbol of wealth and luck in the aquarium world. Known as 'Dragon Fish' for their large metallic scales and majestic swimming style, they are powerful predators that dominate the top of the water column.

Min Tank

150-250 gallons

Max Size

24-36+ inches

Nature

Aggressive Predator

🌡️ 24°C - 30°CExplore Guide →
Arapaima (Sudis gigas)
Expert / Commercial

Arapaima gigas

Arapaima (Sudis gigas)

The Arapaima is one of the world's largest freshwater fish. This 'Amazonian Giant' is only for extreme hobbyists with massive custom ponds. They are air-breathers and can grow to incredible sizes.

Min Tank

5000+ gallon custom pond

Max Size

6-10 feet

Nature

Predatory

🌡️ 24°C - 30°CExplore Guide →
Freshwater Stingray (Potamotrygon)
Advanced / Expert

Potamotrygon spp.

Freshwater Stingray (Potamotrygon)

Freshwater Stingrays are the crown jewels of monster fish keeping. From the Motorro to the Black Diamond, these rays are known for their graceful movement and intelligence. They require massive tanks and pristine water.

Min Tank

180-300 gallons

Max Size

18-36 inches (disc diameter)

Nature

Peaceful / Predatory

🌡️ 25°C - 28°CExplore Guide →
Giant Gourami (Osphronemus goramy)
Easy (but needs massive tank)

Osphronemus goramy

Giant Gourami (Osphronemus goramy)

The Giant Gourami is a massive, long-lived fish that becomes incredibly tame. Known for their high intelligence, they often recognize their owners and can be taught to eat from the hand.

Min Tank

150-200 gallons

Max Size

18-24 inches

Nature

Peaceful but Territorial

🌡️ 24°C - 30°CExplore Guide →
Peacock Bass (Cichla)
Advanced

Cichla spp.

Peacock Bass (Cichla)

Peacock Bass are high-energy predators known for their explosive strikes and beautiful colors. They are only for experienced monster fish keepers with huge setups.

Min Tank

180-250 gallons

Max Size

18-30 inches

Nature

Highly Predatory

🌡️ 26°C - 30°CExplore Guide →
Red Tail Catfish (Phractocephalus hemioliopterus)
Expert

Phractocephalus hemioliopterus

Red Tail Catfish (Phractocephalus hemioliopterus)

The Red Tail Catfish is one of the most recognizable and beloved monster fish. However, they grow to enormous sizes and should only be kept in large custom ponds or massive tanks.

Min Tank

1000+ gallon pond

Max Size

3-4 feet

Nature

Peaceful / Highly Predatory

🌡️ 22°C - 27°CExplore Guide →
Alligator Gar (Atractosteus spatula)
Advanced / Expert

Atractosteus spatula

Alligator Gar (Atractosteus spatula)

The Alligator Gar is a 'living fossil' with a snout full of needle-like teeth. They are massive, prehistoric predators that can grow to several feet long. Only for the most dedicated keepers with enormous custom ponds.

Min Tank

500-1000+ gallon pond

Max Size

4-8+ feet

Nature

Predatory / Calm

🌡️ 18°C - 30°CExplore Guide →
Wolf Fish (Hoplias)
Advanced

Hoplias malabaricus / lacerdae

Wolf Fish (Hoplias)

Wolf Fish are some of the most aggressive and powerful predators in the hobby. Known for their bone-crushing jaws and fierce temperament, they are the 'bad boys' of the aquarium world.

Min Tank

75-180 gallons

Max Size

15-40 inches (varies by species)

Nature

Highly Aggressive

🌡️ 24°C - 28°CExplore Guide →

Fancy Goldfish

1 Species
Goldfish (Carassius auratus)
Intermediate

Carassius auratus

Goldfish (Carassius auratus)

Goldfish are the oldest kept hobby fish. Modern 'Fancy' varieties like Oranda, Ranchu, and Butterfly Telescopes are bred for their unique body shapes and head growths (wen). They are cold-water fish with huge personalities.

Min Tank

30-50 gallons

Max Size

6-10 inches

Nature

Peaceful

🌡️ 18°C - 24°CExplore Guide →

Pond Fish

1 Species
Koi Carp (Nishikigoi)
Intermediate (Pond Maintenance)

Cyprinus carpio

Koi Carp (Nishikigoi)

Koi are the 'Living Jewels' of outdoor ponds. Capable of growing over 3 feet long and living for 50+ years, they are a lifelong commitment. In Kerala, Koi ponds are a popular feature in luxury homes and resorts.

Min Tank

1000+ gallon pond

Max Size

24-36 inches

Nature

Peaceful / Social

🌡️ 15°C - 25°CExplore Guide →

Farm Fish / Kerala Local

1 Species
Pearl Spot (Karimeen)
Intermediate

Etroplus suratensis

Pearl Spot (Karimeen)

The State Fish of Kerala, Karimeen is iconic to the backwaters. While famous as a delicacy, it is also a fascinating aquarium fish (Green Chromide). It is a highly intelligent cichlid with beautiful iridescent spots.

Min Tank

55 gallons

Max Size

8-12 inches

Nature

Semi-Aggressive (Territorial)

🌡️ 24°C - 30°CExplore Guide →

Premium Cichlids

1 Species
Discus Fish (Symphysodon)
Advanced

Symphysodon spp.

Discus Fish (Symphysodon)

The 'King of the Aquarium,' Discus are breathtakingly beautiful but demand perfect water conditions. They are disk-shaped cichlids known for their complex patterns and social hierarchy.

Min Tank

55 gallons

Max Size

6-8 inches

Nature

Peaceful / Shy

🌡️ 28°C - 31°CExplore Guide →

Exotics

1 Species
Snakehead (Channa)
Intermediate

Channa spp.

Snakehead (Channa)

Channa are prehistoric-looking predators with a cult following. From the small, colorful Channa Bleheri to the massive Channa Micropeltes, they are known for their intelligence and 'lurk-and-strike' hunting style.

Min Tank

20-200 gallons

Max Size

6-40 inches (varies by species)

Nature

Aggressive Predator

🌡️ 22°C - 28°CExplore Guide →

Farm Fish

1 Species
Tilapia
Very Easy

Oreochromis niloticus

Tilapia

Tilapia is the backbone of Kerala's aquaculture. Fast-growing and incredibly hardy, they are the perfect choice for biofloc systems and backyard farm ponds. Gift Tilapia is a popular high-yield strain used locally.

Min Tank

500+ gallon tank/pond

Max Size

12-20 inches

Nature

Active / Robust

🌡️ 24°C - 32°CExplore Guide →

Hybrid Cichlids

1 Species
Blood Parrot Cichlid
Easy

Hybrid Cichlid

Blood Parrot Cichlid

Blood Parrots are popular hybrids known for their round bodies and 'smiling' mouths. They are shy, quirky, and full of personality. They are often kept in community tanks with other semi-aggressive fish.

Min Tank

30-55 gallons

Max Size

7-8 inches

Nature

Shy / Peaceful

🌡️ 24°C - 28°CExplore Guide →

Lake Tanganyika Cichlids

1 Species
Frontosa Cichlid (Cyphotilapia frontosa)
Intermediate

Cyphotilapia frontosa

Frontosa Cichlid (Cyphotilapia frontosa)

The 'King of Lake Tanganyika,' the Frontosa is a majestic, deep-water cichlid known for its distinct blue and white stripes and impressive nuchal hump.

Min Tank

100-125 gallons

Max Size

12-14 inches

Nature

Peaceful / Predatory

🌡️ 24°C - 26°CExplore Guide →

Catfish / Algae Eaters

1 Species
Plecostomus (Loricariidae)
Easy - Advanced (varies by species)

Hypostomus plecostomus / Panaque / L-Series

Plecostomus (Loricariidae)

Plecos are the armored cleaning crew of the aquarium. From the common pleco that grows to 2 feet, to the beautiful dwarf Zebra Pleco (L046), they are famous for their suckermouths and algae-eating abilities.

Min Tank

10-125 gallons

Max Size

2-24 inches (varies by species)

Nature

Peaceful / Territorial (Males)

🌡️ 22°C - 28°CExplore Guide →

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