Bettas & gouramis · Trichogaster labiosa

Thick-lipped gourami care guide

Also called: Thick lip gourami, Thicklip gourami, Sunset thick-lipped gourami, Gold thick-lipped gourami

The thick-lipped gourami is a gentle, 3.5 in (9 cm) gourami with orange-brown bars and one of the calmest natures in its family, which makes it a great pick for a quiet community tank. Give it at least 20 gallons (76 L), plants and floating cover.

Thick-lipped gouramis need a tank of at least 20 gallons (76 L), and water at 23–27°C (73–81°F) with a pH of 6–7.5. They grow to about 9 cm (3.5 in) and are peaceful.

Plan a tank with thick-lipped gouramisSee all tank mates

Thick-lipped gourami quick facts

Scientific nameTrichogaster labiosa
FamilyOsphronemidae
OriginSouthern Myanmar, Southeast Asia (aquarium fish are farm-bred)
Adult size9 cm (3.5 in)
Minimum tank20 gallons (76 L), at least 75 cm (30 in) long
Temperature23–27°C (73–81°F)
pH6–7.5
Hardness (GH)4–12 dGH
Group sizeAlone (only one male)
TemperamentPeaceful; males fight each other
Swims atTop
DietOmnivore
Care levelEasy
Lifespan4–6 years
Safe with shrimp?No, eats shrimp
Safe with plants?Yes
  • Long fins attract fin nippers.

Tank setup

One or a few thick-lipped gouramis need at least a 20-gallon long tank (76 L), about 30 in (75 cm) long. Plant it well and add floating plants, since this fish likes shade and cover. Keep the filter flow gentle. Cover the tank so the air above the water stays warm and humid for its surface breathing.

How many thick-lipped gouramis in a tank?

The smallest common tank that suits thick-lipped gouramis is a 20 gallon long. Here is roughly how many fit in each size when they are the only fish, based on adult size and waste output. Leave room if you want tank mates.

TankThick-lipped gouramis (alone)
3 gallonToo small
5 gallonToo small
10 gallonToo small
15 gallonToo small
20 gallonToo small
20 gallon longUp to 6
29 gallonUp to 9
40 gallonUp to 13
55 gallonUp to 18
75 gallonUp to 25
125 gallonUp to 42

Numbers are bioload limits only. Males fight, so keep one male unless the tank is large and well planned.

What you need for thick-lipped gouramis

Sized for a 20 gallon long tank, the smallest common size that suits thick-lipped gouramis. For a different tank or a mix of fish, use the stocking calculator for a list sized to your plan.

Tank and equipment

Food and extras for thick-lipped gouramis

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Water parameters

Aim for 23–27 °C (73–81 °F), pH 6.0–7.5 and soft to medium-hard water (about 4–12 dGH). Farm-bred fish handle most clean tap water. Do partial water changes every week and avoid sudden swings.

Best tank mates for thick-lipped gouramis

These popular species share thick-lipped gouramis' water needs and temperament. See the full list of 83 good matches.

Avoid keeping thick-lipped gouramis with

  • Betta fish: Betta fish tends to attack colourful, long-finned fish like thick-lipped gouramis, mistaking them for rivals.
  • Cherry shrimp: Thick-lipped gourami eats small shrimp like cherry shrimp.
  • Common goldfish: They need different temperatures: Thick-lipped gourami 23–27°C (73–81°F), common goldfish 15–22°C (59–72°F).
  • Oscar: Oscar can eat thick-lipped gouramis: they're small enough to fit in its mouth once it's grown.
  • Tiger barb: Tiger barb is a well-known fin nipper and will shred the long fins of thick-lipped gouramis.
  • Chinese algae eater: Chinese algae eater is aggressive and will bully or injure peaceful thick-lipped gouramis.

Feeding

It eats almost any food. Use a good flake or micro pellet as the base, then add frozen or live bloodworms, daphnia and brine shrimp several times a week. Some plant-based flake keeps the diet balanced.

Behavior

This is one of the gentlest gouramis. Fish raised together from a young age tend to get along for years, though males may spar if space is tight, so keep more females than males. Good tank mates include rasboras, danios, small peaceful barbs, tetras, loaches and corydoras. Avoid fin nippers that chew its thread-like feelers, and don't keep it with banded gouramis, because the two cross-breed.

Breeding

Males are larger and more colorful, with a pointed dorsal fin, while females are plainer and rounder. The male builds a bubble nest in a shallow, still, planted tank and guards the 500 or more eggs. Take the female out after spawning and the male once the fry swim. Feed the fry infusoria or liquid fry food first, then baby brine shrimp.

Tips from experienced keepers

  • Buy a few young fish together and include more females than males for a calm group.
  • Don't house it with banded gouramis. The two species hybridize.
  • Keep fin nippers like tiger barbs away from its long, thread-like feelers.
  • A gold form is sold as the sunset gourami. Check the scientific name, because honey gouramis are sold under that name too.
  • Small shrimp such as cherry shrimp are likely to be eaten, so keep them in a separate tank.

Frequently asked questions

Are thick-lipped gouramis good community fish?

Yes. They are among the most peaceful gouramis and do well with small, calm fish like rasboras, tetras and corydoras.

How big do thick-lipped gouramis get?

About 3.5 inches (9 cm) when fully grown. That is larger than a honey gourami and a little larger than a dwarf gourami.

Can you keep two male thick-lipped gouramis together?

Often yes, in a well-planted tank of 30 gallons (114 L) or more. Males may spar, so give them cover and add females to spread out the attention.

Sources

We checked these references when writing this page. Values are for healthy long-term keeping, not survival limits. Last reviewed 2026-10-13. See our editorial policy.