Glowlight Rasbora

Glowlight Rasbora (Trigonostigma hengeli) is native to specific tropical and subtropical freshwater systems. The captive-bred Glowlight Rasbora sold at most LFS comes from generations of farmed stock and is generally hardier and better-acclimated to tank conditions than wild-caught equivalents. Wild specimens are occasionally available for keepers chasing original-bloodline coloration or biotope-accurate stocking.

Glowlight Rasbora requires a minimum of 15 gallons for healthy adults. The minimum is based on the species' adult size (1 inch), territorial range, and behavior pattern. Most Glowlight Rasbora sold at small juvenile size will reach full adult size within 12-24 months and the system must be sized to the adult, not the juvenile.

For a Glowlight Rasbora setup: tank sized for the adult footprint, HOB or canister filter rated 4-6x tank volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape and plants.

Browse our 15-gallon aquarium guide for the complete equipment list.

Glowlight Rasbora prefers freshwater parameters:
Temperature: 74-80°F
pH: 6.5-7.5
GH: 4-12 dGH
KH: 3-8 dKH
Ammonia + nitrite: Both 0 ppm
Nitrate: Under 20 ppm long-term
Copper: 0 (especially critical for invertebrates)

Use dechlorinator on every water change. Test parameters weekly during cycling, biweekly once stable. Stable consistency beats sliding-scale "ideal" parameters.

Glowlight Rasbora is a omnivore. Eats a varied diet of pellets, frozen foods, and supplemental greens. Quality flake or pellet (Hikari, New Life Spectrum, Tetra) plus frozen mysis or bloodworms 2-3x weekly produces best color and behavior. Feed Glowlight Rasbora appropriately for its size + activity level. Overfeeding is the #1 cause of water-quality crashes in tanks of all sizes.

Glowlight Rasbora works in community tanks with peaceful species in similar size class. Adult-size matters more than purchase-size when planning stocking. Avoid mixing aggressive with passive species.

Browse care guides for tankmate-compatibility tables for Glowlight Rasbora and similar species.

Glowlight Rasbora reaches 1 inch at adulthood with a captive lifespan of 5-8 years with proper care. Most freshwater species live 3-10 years; larger species (oscars, plecos, knifefish) reach 10-20+ years.

Glowlight Rasbora can be bred in dedicated breeding tanks with appropriate setup and water-chemistry triggers. Research the species-specific breeding requirements before attempting.

Glowlight Rasbora is susceptible to standard freshwater diseases (ich, columnaris, fin rot, bacterial infections). Quarantine new Glowlight Rasbora for 4 weeks before adding to your display tank. Treat fish in a separate hospital tank to avoid affecting plants and inverts. Most disease outbreaks trace back to poor water quality, chronic stress, or skipped quarantine.

Glowlight Rasbora is sold at LFS (local fish stores), online retailers, and direct from breeders/wholesalers. Pricing varies widely by source, size, and quality:

Budget tier: $5-25
Mid-tier: $15-50
Premium tier: $40-150

Browse live Glowlight Rasbora from vetted Fast Aquatics vendors with carrier-tracked overnight shipping (FedEx Priority + UPS Next Day), climate-aware hold logic, and a 4-hour DOA window with photo-evidence claims. Captive-bred or aquacultured specimens cost more upfront but arrive healthier and integrate faster.

How big does Glowlight Rasbora get?

1 inch at adulthood within 12-24 months.

How long does Glowlight Rasbora live?

5-8 years with proper care.

What is the minimum tank/pond size?

15 gallons, with larger systems strongly recommended.

Is Glowlight Rasbora hard to keep?

Glowlight Rasbora is rated beginner difficulty.

What does Glowlight Rasbora eat?

Glowlight Rasbora is a omnivore; appropriate diet matches its natural feeding pattern.

Where can I buy Glowlight Rasbora?

Browse live Glowlight Rasbora from vetted Fast Aquatics vendors with carrier-tracked Buyer Protection and a 4-hour DOA window.

How much does Glowlight Rasbora cost?

$5-150 depending on source and quality.

Do I need to quarantine Glowlight Rasbora?

Yes - quarantine new Glowlight Rasbora for 4-6 weeks in a separate tank before adding to your display.

Is Glowlight Rasbora reef safe?

Not applicable - Glowlight Rasbora is not a marine reef species.