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FishmediumFreshwater

Day's Paradise Fish

Pseudosphromenus dayi

📍 South Asia and Southeast Asia (India, Sri Lanka, Myanmar, Malaysia)

Day's Paradise Fish (Pseudosphromenus dayi) is a small, peaceful labyrinth fish native to slow-moving waters of South and Southeast Asia, closely related to the licorice gouramis. It displays attractive reddish-brown coloration with iridescent blue-green highlights and elongated tail filaments, making it a prized species among gourami enthusiasts. Unlike its more aggressive cousin the Paradise Fish, this species is notably shy and gentle, thriving in well-planted, quiet aquariums.

Size2.5"
Min Tank10g
School2+
peaceful
Zonemiddle

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Care Guide

Diet

Day's Paradise Fish is an omnivore that strongly prefers small live or frozen foods such as daphnia, micro worms, baby brine shrimp, and bloodworms. High-quality micro pellets and crushed flake foods can supplement the diet but should not be the sole food source. Feed small amounts 1-2 times daily to maintain health and encourage natural foraging behavior.

Behavior

This species is shy and retiring, spending much of its time among dense vegetation and leaf litter near the middle of the water column. Males may display mild territorial behavior toward one another, especially during breeding, but are generally non-aggressive toward other species. It is best kept in pairs or small groups in a quiet, well-planted aquarium away from boisterous tankmates.

Breeding

Day's Paradise Fish is a bubblenest builder; the male constructs a small nest among floating plants or under broad leaves and guards the eggs after spawning. Breeding is triggered by slightly warmer, softer, and more acidic water along with an abundance of live foods. The male guards the nest aggressively during this period, and fry are tiny and require infusoria or commercial fry foods as first foods.

Common Diseases

Velvet (Oodinium)

Symptoms

Gold or rust-colored dust on skin, clamped fins, flashing against objects, lethargy, rapid gill movement

Treatment

Raise temperature slightly, dim lighting, treat with copper-based medication or formalin; quarantine affected fish

Ich (White Spot Disease)

Symptoms

Small white spots resembling salt grains on body and fins, scratching against surfaces, lethargy, loss of appetite

Treatment

Gradually raise temperature to 28-30°C, treat with ich medication (malachite green or formalin-based); maintain good water quality

Bacterial Fin Rot

Symptoms

Fraying, discoloration, or deterioration of fins; reddened fin edges; lethargy

Treatment

Improve water quality with frequent water changes; treat with antibacterial medication such as kanamycin or erythromycin

Labyrinth Organ Inflammation

Symptoms

Gasping at surface, lethargy, loss of color, swollen head area; often triggered by cold drafts or poor air quality above water

Treatment

Ensure warm, humid air above the water surface; maintain stable temperatures; improve water quality and reduce stress

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Quick Facts

diet
Omnivore – prefers small live and frozen foods such as daphnia, brine shrimp, and micro worms; accepts high-quality micro pellets
lifespan
3-5 years
max size
6.5 cm (2.5 in)
tank size
10 gallons minimum
temperament
peaceful

Water it likes

ph
5.5-7.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
1-10 dGH
temperature
72–82°F (22–28°C)

Stats

Community tips0
Kept by0 hobbyists