What are licorice gouramis and how do you care for them?

Reviewed by the Fast Aquatics husbandry team · Updated May 2026
Quick answerLicorice gouramis (Parosphromenus) are tiny (1-1.5 inch) blackwater gouramis from Southeast Asian peat swamps. They need soft acidic water (pH 4.0-6.5, GH <2), dim lighting, dense planting, and a blackwater setup with leaf litter + driftwood. Best in species-only tanks.

Full answer

Licorice gouramis (genus Parosphromenus) are 22+ species of micro-gouramis from blackwater peat swamps in Indonesia, Malaysia, and Thailand. Tank size: 10-20 gallons for a small group. Water: blackwater - pH 4.0-6.5, GH less than 2, KH less than 1, TDS less than 50. RODI water + Indian almond leaves + alder cones + driftwood tannins. Temperature: 72-78°F. Diet: live and frozen micro-foods only - they rarely accept flake or pellets. Microworms, baby brine shrimp, daphnia, mosquito larvae. Compatibility: species-only or with chili rasbora / dwarf rasbora. Almost any other fish outcompetes them at feeding. Breeding: males build bubble nests in caves or under leaves. Eggs hatch in 24-36 hours. Note: almost the entire genus is conservation-vulnerable due to peat-swamp habitat loss. Captive-bred specimens are the ethical sourcing choice.

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