Deissner’s Liquorice Gourami – Parosphromenus deissneri

Description

Deissner’s Liquorice Gourami (Parosphromenus deissneri)

The Deissner’s Liquorice Gourami (Parosphromenus deissneri) is a rare and fascinating freshwater fish prized for its incredible coloration, delicate appearance, and unique breeding behavior. Native to the blackwater peat swamps and slow-moving streams of Bangka Island, Indonesia, this beautiful little gourami is a true gem for experienced aquarists and collectors of uncommon species.

Males display stunning iridescent blue, green, and reddish tones, with intricate patterns along their dorsal, anal, and tail fins. During courtship, their colors become even more spectacular as they display to attract females. Females are generally more subdued in coloration but are equally fascinating to observe.

Unlike many commonly available gouramis, Deissner’s Liquorice Gourami requires specialized water conditions to thrive. In the wild, these fish inhabit extremely soft, acidic, tannin-rich waters beneath dense forest canopies. An aquarium featuring driftwood, dried leaves, subdued lighting, and plenty of hiding places will help recreate their natural environment. Gentle filtration and stable water parameters are essential.

These peaceful, somewhat shy fish are best maintained in a dedicated species aquarium, ideally as a pair or carefully managed small group. They can easily be intimidated or outcompeted for food by larger or more active tankmates.

Deissner’s Liquorice Gouramis are micropredators that feed primarily on tiny aquatic invertebrates. They strongly prefer live foods such as baby brine shrimp, microworms, Daphnia, and other appropriately sized offerings. Frozen foods may occasionally be accepted, but prepared dry foods are frequently ignored.

One of the most fascinating aspects of this species is its breeding behavior. Males establish small territories around caves or sheltered areas, where they perform elaborate courtship displays. After spawning, the male takes responsibility for guarding and caring for the eggs until the fry develop.

Quick Care Guide:

• Scientific Name: Parosphromenus deissneri
• Common Name: Deissner’s Liquorice Gourami
• Origin: Bangka Island, Indonesia
• Adult Size: Approximately 1.5–2 inches
• Temperament: Peaceful, shy
• Minimum Tank Size: 10 gallons recommended
• Temperature: 72–82°F
• pH: 3.0–6.5
• Water Hardness: 1–4 dGH
• Diet: Micropredator; primarily small live foods
• Tankmates: Best kept in a species-only aquarium
• Care Level: Advanced

With their breathtaking courtship displays, intricate coloration, and specialized blackwater requirements, Deissner’s Liquorice Gouramis offer an incredibly rewarding experience for dedicated fishkeepers. For aquarists interested in rare labyrinth fish and natural blackwater aquariums, this remarkable species is truly something special!