Rummy-Nose Tetra Care Guide
The rummy-nose tetra (Hemigrammus rhodostomus) is one of the most popular tropical freshwater fish in the UK. Known for its bright red nose, striped tail, and tight schooling behaviour, it's a favourite for aquascaped and community aquariums.
In this guide, you'll learn everything you need to know about rummy-nose tetra care, including tank size, water conditions, compatibility, breeding, and typical UK prices - plus how to buy or sell them locally.
Quick facts about Rummy Nose Tetras
Rummy-nose tetras are small, peaceful schooling fish native to the Amazon Basin. They are best known for their vivid red face, which can fade if the fish is stressed - making them a good indicator of water quality.
They thrive in stable, well-maintained aquariums and are most impressive when kept in large groups.
Hemigrammus rhodostomus
4-5cm
Amazon Basin (Brazil, Colombia, Peru)
75L (20gal)
5-6 years
Peaceful, shoaling
24-28°C
Omnivore (flakes, frozen, live foods)
5.5-7.0
£2-£3 per fish (juveniles)
How Many Rummy-Nose Tetras Should You Keep?
Rummy-nose tetras should always be kept in groups of at least 6-10 fish, though larger groups of 15+ are ideal.
Keeping them in small numbers can lead to:
- Stress and faded colour
- Reduced schooling behaviour
- Increased susceptibility to illness
In larger groups, they display their signature tight, synchronised swimming patterns.
Ideal Tank Conditions for Rummy-Nose Tetras
Creating the right environment is key to keeping rummy-nose tetras healthy and vibrant.
- Tank Setup: Use fine gravel or sand with a darker substrate to help enhance their colours.
- Plants & Decor: Dense planting with open swimming space works best. Floating plants can help diffuse lighting and replicate their natural habitat.
- Water Conditions: Soft, slightly acidic water is ideal. Stable parameters are more important than chasing exact numbers.
- Filtration & Flow: Gentle water flow with strong biological filtration is recommended.
- Lighting: Moderate lighting helps mimic the shaded rivers of the Amazon.
Compatibility with Other Fish
Rummy-nose tetras are peaceful and do well in community aquariums.
- Good Tankmates: neon tetras, cardinal tetras, harlequin rasboras, corydoras catfish and small gouramis.
- Avoid: Aggressive species, fin-nippers (e.g. tiger barbs) and large cichlids.
Because they are sensitive fish, avoid housing them with overly boisterous tankmates.
Are Rummy-Nose Tetras Easy to Care For?
Rummy-nose tetras are moderately easy to care for, but they are less forgiving than some beginner fish.
They require:
- Stable water conditions
- A mature, cycled tank
- Good water quality
Their red nose fading is often an early sign of stress, making them useful indicators but also sensitive to change.
Rummy-Nose Tetra Price in the UK
In the UK, rummy-nose tetras typically cost £2-£3 per fish for juveniles. Larger or well-established specimens may cost more.
Prices can vary depending on:
- Location
- Availability
- Shop vs hobbyist sellers
Buying from local aquarists is often more affordable and can reduce stress on the fish compared to long-distance transport.
Where to Buy Rummy-Nose Tetras in the UK
Rummy-nose tetras are widely available in UK aquarium shops, but many fishkeepers prefer buying from other hobbyists locally.
Sourcing fish locally can:
- Reduce transport stress
- Improve survival rates
- Offer better value
TankMate UK helps connect fishkeepers who want to buy, sell, or rehome fish safely - without shipping.
Can You Sell Rummy-Nose Tetras?
Yes - many aquarists sell or rehome rummy-nose tetras when reducing stock or after breeding.
Selling locally is often the best option, as it:
- Minimises stress for the fish
- Avoids the risks of shipping
- Connects you with responsible hobbyists
TankMate UK allows you to list fish quickly and find local buyers.
Breeding Rummy-Nose Tetras
Breeding rummy-nose tetras can be challenging but rewarding.
Key Tips
- Condition a breeding pair with live foods
- Use very soft, slightly acidic water (pH 5.5-6.5)
- Provide dim lighting
- Eggs hatch in around 24 hours
- Fry are sensitive to light and water quality
Parents should be removed after spawning to prevent egg predation.
Common Problems with Rummy-Nose Tetras
Fading red nose, often caused by:
- Stress
- Poor water quality
- Sudden parameter changes
- Sudden Death After Introduction
These fish are sensitive to:
- Poor acclimation
- Unstable tanks
Poor schooling behaviour, usually due to:
- Too few fish
- Incompatible tankmates
Why Rummy-Nose Tetras Are So Popular
- Striking red nose and clean body pattern
- Unique tight schooling behaviour
- Ideal for planted aquariums
- Great addition to peaceful community tanks
When kept correctly, they create a stunning, unified movement in the aquarium.
Frequently Asked Questions
At least 6-10, though larger groups are strongly recommended.
This is usually a sign of stress or poor water quality.
They can be, but are better suited to aquarists with a stable, established tank.
A minimum of 75 litres, with more space preferred for larger groups.
Looking to Buy or Sell Rummy-Nose Tetras Locally?
TankMate UK connects fishkeepers who want to buy, sell, or rehome fish safely within their local area.
Whether you're stocking your aquarium or passing fish on to a new home, you can:
- Browse fish available near you
- List your own fish in minutes
- Avoid the risks of shipping
Explore local listings with TankMate UK and find the right fish for your aquarium.