
Aulonocara sp. 'Firefish' - Tropical Fish for Sale UK
24–28°C · pH 7.5–8.5 · 200L

Hyphessobrycon griemi
A small, peaceful South American tetra that thrives in planted community aquariums and looks best in a lively school. Moderate care, peaceful. 23-27C, pH 6.0-7.5.
Maintain these water conditions for optimal health and vibrant colors
The nano aquarium fish, scientifically known as Hyphessobrycon griemi, a small, peaceful south american tetra that thrives in planted community aquariums and looks best in a lively school..
Native to South America, reported from Brazil, this moderate-care species belongs to the Characidae family and has earned a loyal following among UK aquarists for its unique characteristics and manageable requirements.
The Griem's Tetra displays the classic tetra body shape with distinctive markings that set it apart from other characins. Their schooling behavior creates a mesmerizing display of synchronized movement and color.
At Tropical Fish Co, we select only the healthiest specimens with vibrant coloration and active behavior, ensuring you receive premium quality fish for your aquarium.
In the wild, Hyphessobrycon griemi inhabits south america, reported from brazil. Understanding their natural environment helps us replicate optimal conditions in the home aquarium.
These waters are typically soft, slightly acidic, and rich in tannins from decomposing leaf litter. Dense vegetation provides shelter and feeding opportunities, while seasonal flooding creates dynamic habitat conditions.
A minimum tank size of 75 litres is essential for housing Griem's Tetra. Larger aquariums provide more stable water chemistry and greater swimming space, both critical for long-term health.
A well-planted aquarium with open swimming areas suits this species perfectly. Use a dark substrate to enhance coloration, and include driftwood and leaf litter to create natural tannins and hiding places.
Invest in quality filtration capable of turning over the tank volume 4-6 times per hour, and perform regular 25-30% water changes weekly to maintain pristine conditions.
Always keep Griem's Tetra in groups of 6+ individuals. Smaller groups cause stress, faded colors, and abnormal behavior. Larger schools create spectacular displays!
Maintaining correct water parameters is crucial for the health of Griem's Tetra:
This species prefers soft, acidic water. Use RO water remineralized to appropriate GH/KH, add Indian almond leaves or alder cones for tannins, and avoid calcareous decorations that raise pH.
Invest in quality test kits and check parameters weekly. Stability is more important than hitting exact numbers - avoid sudden changes that stress fish.
As a omnivore, Griem's Tetra requires a carefully balanced diet to maintain optimal health and coloration.
A varied small-crumb, flake, micro-pellet, and frozen/live food diet; include quality protein foods such as daphnia, brine shrimp, and bloodworms in moderation.
Vary the diet between quality flakes/pellets, frozen foods (bloodworms, daphnia, brine shrimp), and occasional fresh vegetables. Nutritional variety promotes vibrant colors, strong immunity, and natural behavior.
Remove uneaten food after 3-5 minutes to prevent water quality degradation. A single weekly fasting day can benefit digestion and overall health.
The Griem's Tetra is classified as peaceful, though individual personality can vary with age, tank size, and stocking density.
This peaceful species thrives in community setups with similarly sized, non-aggressive tankmates. Calm demeanor and gentle nature make it ideal for planted aquariums.
Keep in a well-planted aquarium with open swimming space and a tight-fitting lid; best kept in a proper group, as they may become shy or stressed when kept in too small a number.
Choose tankmates carefully to ensure a harmonious community aquarium:
Compatible species include:
Avoid housing with:
Always research specific compatibility and introduce new fish gradually, monitoring behavior closely during the first few weeks.
Likely an egg-scattering tetra that spawns among fine-leaved plants or spawning mops; breeding is best attempted in a separate soft, slightly acidic setup with subdued lighting and the adults removed...
Egg-scattering species require dense planting or spawning mops to catch eggs. Remove adult fish immediately after spawning to prevent egg predation. Fry emerge in 24-48 hours and require infusoria or liquid fry food initially.
When you choose Tropical Fish Co for your nano aquarium fish purchase, you benefit from:
With decades of combined experience in the UK aquarium trade, we understand what makes healthy, thriving fish. Our Griem's Tetra specimens are among the finest nano aquarium fish available online today.
Order with confidence knowing you're purchasing from a trusted UK specialist. We're passionate about connecting aquarists with exceptional fish for sale UK wide.
Healthy, vibrant fish from trusted suppliers
Detailed care guides and support
Your fish arrives healthy or we'll replace it
Properly quarantined and ready for your tank

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