Lemon Tetra Care Guide
The lemon tetra (Hyphessobrycon pulchripinnis) is a peaceful and hardy tropical freshwater fish popular in the UK. Known for its subtle yellow colouring and distinctive black-edged fins, it's a great choice for community and planted aquariums.
In this guide, you'll learn everything you need to know about lemon tetra care, including tank size, water conditions, compatibility, feeding, and typical UK prices - plus how to buy or sell them locally.
Quick facts about Lemon Tetras
Lemon tetras are small schooling fish native to South America. While their colour may appear subtle at first, healthy specimens display a soft lemon-yellow glow with striking black and white fin markings.
They are active, peaceful, and ideal for group setups.
Hyphessobrycon pulchripinnis
4-5 cm
Brazil
60-75L (15-20gal)
4-6 years
Peaceful, shoaling
23-28°C
Omnivore (flakes, micro pellets, frozen, live foods)
5.5-7.5
£2-£4 per fish
How Many Lemon Tetras Should You Keep?
Lemon tetras are shoaling fish and should always be kept in groups.
- Minimum group size of 6-8
- Groups of 10+ are ideal
- Larger groups improve confidence and colour
Keeping too few can lead to:
- Stress and hiding
- Dull colouration
- Reduced activity
In larger groups, they display more natural behaviour and stronger colours.
Ideal Tank Conditions for Lemon Tetras
Providing the right environment helps lemon tetras thrive and show their best appearance.
- Tank Setup: Well-planted aquarium with open swimming areas
- Substrate: Dark substrate enhances their yellow tones
- Plants & Decor: Dense planting with driftwood and shaded areas
- Water Conditions: Soft to slightly acidic water preferred
- Filtration & Flow: Gentle to moderate flow
- Lighting: Dim to moderate lighting
A natural, slightly shaded environment works best.
Compatibility with Other Fish
Lemon tetras are peaceful and ideal for community aquariums.
- Good Tankmates: other tetras, rasboras, corydoras catfish, dwarf cichlids, and small gouramis
- Avoid: aggressive fish and large species that may see them as food
They are calm and mix well in peaceful setups.
Are Lemon Tetras Easy to Care For?
Lemon tetras are easy to care for and suitable for beginners.
They require:
- A stable, cycled tank
- A proper group size
- Clean water
- A varied diet
They are hardy and forgiving when kept in good conditions.
Lemon Tetra Price in the UK
In the UK, lemon tetras typically cost between £2-£4 per fish.
Prices vary depending on:
- Size and condition
- Availability
- Shop vs hobbyist sellers
They are affordable and widely available.
Where to Buy Lemon Tetras in the UK
Lemon tetras are widely available in UK aquarium shops and from private sellers.
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 Lemon Tetras?
Yes - lemon tetras are sometimes bred and sold by hobbyists.
Selling locally is often the best option, as it:
- Minimises stress for the fish
- Avoids the risks of shipping
- Connects you with responsible aquarists
TankMate UK allows you to list fish quickly and find local buyers.
Feeding Lemon Tetras
Lemon tetras are omnivorous and require a varied diet.
Key Tips:
- Feed high-quality flakes or micro pellets
- Supplement with frozen or live foods (e.g. daphnia, brine shrimp)
- Include some plant-based foods
- Feed small amounts regularly
- A varied diet supports colour and overall health.
Common Problems with Lemon Tetras
Faded colouration, often caused by:
- Stress
- Poor water quality
- Inadequate diet
Hiding behaviour, linked to:
- Too small a group
- Lack of cover
Stress, caused by:
- Aggressive tankmates
- Poor water conditions
Why Lemon Tetras Are So Popular
- Subtle but attractive yellow colouring
- Peaceful and community-friendly
- Hardy and beginner-friendly
- Ideal for planted aquariums
- Affordable and widely available
When kept correctly, lemon tetras add a soft, natural colour and gentle activity to any aquarium.
Frequently Asked Questions
Yes, they are hardy and easy to care for.
At least 6-8, though larger groups are recommended.
Yes, they thrive in planted tanks with cover.
At least 60-75 litres, with more space preferred for larger groups.
Looking to Buy or Sell Lemon 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.