Skip to content
Menu

Species profile

Frail Gourami

Ctenops nobilis

Common names: Frail Gourami, Noble Gourami, Indian Paradisefish

Recognized speciesGouramis
Frail Gourami (Ctenops nobilis)

Adult size

Up to 10 cm

Up to 10 cm

Countries of origin

  • See all stock from Bangladesh
  • See all stock from India
  • See all stock from Nepal

Good fit for your tank?

Good fit for

  • A keeper who has researched this fish and can match its needs

Think carefully if

  • You keep shrimp you want to protect

A slim, shy fish from the Ganges and Brahmaputra, also called the Noble Gourami, and the only member of its genus. Keep alone or in a small group in 108 litres or more.

Appearance and Identification

A slim, shy fish from the Ganges and Brahmaputra, also called the Noble Gourami, and the only member of its genus. Its reputation for being hard to keep is overstated if it gets cool water and live or frozen foods.

Check the scientific name when buying, as common names vary between sellers and countries.

Males are usually brighter, with more pointed dorsal fins, and females are rounder.

Tank Requirements

Suggested filter
About 220–320 litres an hour
Minimum tank volume
108 litres
Minimum tank length
120 cm
Minimum group size
1
Recommended group size
2
Activity level
Low
Flow preference
Low
Planting preference
Heavily planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Moderate

Keep the water calm, with floating plants and tall stems for cover, and leave a little open water at the surface, because gouramis breathe air. A lid keeps the air above the water warm, which protects the labyrinth organ.

Behaviour and Tankmates

A calm, deliberate fish that explores with its long, thread-like pelvic fins and takes breaths of air from the surface.

Can be kept singly or in a small group. Males may squabble, so give them cover if you keep more than one.

Males can be territorial, especially when building a nest.

Usually suits a calm community of fish that are not too boisterous. Avoid fin nippers, which go for its long pelvic fins. It is likely to eat shrimp. Choose its tankmates with care.

Check tankmates for this species

Water Parameters

Temperature
15–25 °C
pH
5–7.5
GH
2–12
Stability importance
Important

Fairly tolerant of different water, if it is clean and stable.

Parameter caveat
Keep up regular water changes, and acclimatise new fish slowly.

Feeding

Diet types
Omnivore
Feeding frequency
Daily
Preferred foods
  • Quality pellets or flakeA good staple. Choose a size that fits its mouth.
  • Frozen bloodworm, daphnia and brine shrimpOffer several times a week for colour and condition.
  • Algae or vegetable-based foodInclude some plant matter for balance.

Takes prepared foods readily, along with live and frozen foods.

Feed small amounts, and remove anything left after a few minutes.

Breeding

Breeding type
Mouthbrooder
Breeding difficulty
Difficult
Parental care
Mouthbrooding
Baby foods
  • Newly hatched brine shrimpThe fry can usually take this from the start.
  • Crushed flakeA simple addition as they grow.

A mouthbrooder. The female usually holds the eggs and young fry in her mouth for a few weeks, and releases free-swimming young. Give her cover, and avoid stressing her during this time.

Habitat and Origin

Geographic origin
Bangladesh, India, Nepal, South Asia
Natural habitat
Freshwater Stream
Aquarium contexts
Planted Aquarium
Audience level
Intermediate

Classification

Profile type
Recognized species
Genus
Ctenops
Family
Osphronemidae
Species group
Fish, Gouramis

Have you kept this species?

You can write a note about what worked for you, or send a photograph. We check everything before it appears here.

Share a note or photo

JPG, PNG, or WebP, up to 5 MB.