Tetra UK

26/11/2025

❄️ Pond Top Tip: Preparing for Winter ❄️

Winter is almost here, and your pond is entering its period of hibernation. During this time, fish become almost motionless in the colder water — but it’s still important to check water quality regularly. Stable, healthy water now will help your fish thrive come spring.

💧 What to check:
- Test for phosphate and nitrate — low levels are important, as excessive levels can lead to algae problems next season.
- Ensure ammonia and nitrite levels are undetectable.
- A partial water change if needed at this time of year, and always dechlorinate incoming tap water.
🧪 How often do you test your pond water? Share your routine in the comments and let’s help each other keep ponds healthy all winter!

22/11/2025

Keeping your fish happy and healthy starts with knowing the signs of a healthy aquarium pet! 🐟

👉 In this video, we show you what to look out for to ensure your fish are thriving.

Keeping your fish happy and healthy starts with knowing the signs of a healthy aquarium pet! In this video, Tetra UK shows you what to look out for to ensure...

19/11/2025

🎄 Pond Top Tip 🎄

With Christmas just around the corner, it’s the perfect time to start planning for next year’s pond season — or even add a few pond care essentials to your wish list! 📝🎁

💧 Think about filtration: Technology has advanced a lot, so it might be time to upgrade. Remember, your fish may have grown or even bred this year — meaning your current filter system could be working overtime.

🎁 Gift ideas for pond keepers: From water testing kits (always handy!) to maintenance tools and replacement parts, there are plenty of practical presents to make pond care easier and more enjoyable.

👉 What’s on your pond care wish list this Christmas? Tell us in the comments below! 💬

18/11/2025

🎄 Thinking about getting goldfish for the kids this Christmas? 🎁

Before you decide, here’s why tropical fish might be the better choice — and why a little research goes a long way when it comes to caring for fish responsibly. 🧐

🦈 You could keep a shark! (Well… a Red-tailed Black Shark! Not really a shark, but the kids like to think so!) They’re peaceful and live happily with barbs, danios, rainbowfish, and tetras.
🌈 More colour and variety — tropical fish come in many species that can live together, creating a lively, colourful aquarium.
🏠 Small and manageable — unlike goldfish, which grow quite large and need bigger tanks over time.
💧 More fish, same space — you can safely keep several small tropical fish in the same tank size that would only suit a couple of goldfish.
🐟 A greater range of behaviour to watch - from colourful guppies cruising at the surface to busy catfish cleaning the gravel. What about an upside-down catfish, or a glassfish - that you can see right through?

✨ A tropical aquarium is a fun, educational way for children to learn about caring for pets — but it’s always important to research the responsibility involved to make sure it’s the right choice for your family.

👉 Want to learn more about keeping fish as pets for kids?
Visit https://blog.tetra.net/en-en/keeping-fish-as-pets/

15/11/2025

Breeding fish successfully isn’t just about tank conditions — nutrition plays a crucial role! 🐟

👉 Watch on our YouTube channel to find out why feeding your fish high-quality food is essential for healthy eggs, fry survival, and strong, vibrant adults.

Thank you to for the video.

Breeding fish successfully isn’t just about tank conditions — nutrition plays a crucial role! 🐟 Here’s why feeding your fish high-quality food is essential ...

13/11/2025

💙 It’s World Kindness Day! 💙
Kindness doesn’t just extend to people — our fish deserve it too! 🐠

How do you show a little extra kindness to your aquarium?
🌿 Maybe by adding a new plant or ornament to keep things interesting?
🍽️ Or treating your fish to a tasty snack like Tetra FunTips or FreshDelica?

Let’s celebrate by sharing our best ideas —
👉 How do you show your fish a little love today? Tell us in the comments below! 💬

12/11/2025

🍂 Autumn Pond Tip 🍂
As temperatures drop and pond equipment is stored away for winter, it’s the perfect time to give your kit some TLC. 🧰

✅ Service your equipment:
Check for worn or perishable parts such as O-rings or pump impellers — reputable manufacturers offer replacements to keep everything running smoothly.

💡 Don’t forget your UV clarifier:
Over time, quartz sleeves can build up limescale, reducing UV effectiveness. Replacing them now can significantly improve performance when spring returns.

🪣 A little maintenance now helps ensure your pond runs crystal clear and healthy next season!

👉 What’s on your autumn pond care checklist?
Share your top maintenance tips or questions in the comments below — we’d love to hear how you’re preparing your pond for winter!

08/11/2025

🍽️ Did you know different fish species need different diets?

🐠 In our latest video, we dive into why species-specific nutrition is so important — and how Tetra’s tailored foods help your fish grow strong, stay healthy, and show off their best colours 🌈

💧 What you’ll discover:
✅ Why tropical fish, goldfish, and cichlids all have unique nutritional needs
✅ How Tetra’s species-specific foods support health, growth, and vitality
✅ Expert tips for feeding your fish correctly and safely

Providing the right nutrition keeps your fish happy, active, and vibrant — and with Tetra, you can feed them with confidence.

🎥 Watch now and give your fish the care they deserve!

Feed your fish the right way! In this video, Tetra UK explains the benefits of species-specific fish foods and how giving your fish tailored nutrition helps ...

05/11/2025

😟 Did you know fish can get stressed too?
Just like us, fish experience stress — and when it’s ongoing (for example, from bullying by more aggressive tank mates), their immune system can weaken, leaving them more vulnerable to illness.

Here are some common causes of fish stress to watch out for 👇
🐟 Not enough hiding spots for timid fish
🐠 Incompatible or aggressive tank mates
🌊 Overstocking, which can reduce oxygen and affect water quality
🏠 An aquarium that’s too small
🥬 Poor nutrition
💧 Elevated ammonia or nitrate levels (especially stressful for goldfish)
⚖️ Fluctuating pH levels
🌡️ Sudden temperature changes (a common cause of stress in bettas)

Keeping your aquarium conditions matched to the demands of the fish and other livestock is key to their health and happiness. 💙

👉 Want to help your fish thrive?
Regular water testing and high-quality nutrition can make all the difference. Visit https://blog.tetra.net/en-en/ to discover expert care tips and products designed to keep your fish calm, healthy, and happy.

04/11/2025

🔥 Meet the Aulonocara Firefish! 🔥
This vibrant cichlid is as captivating in behaviour as it is in colour.

✨ Did you know?
All Aulonocara species are maternal mouthbrooders — meaning the female carries her eggs (and later the fry) safely in her mouth. It’s truly fascinating to watch!

Compared to many other cichlids, the Firefish is relatively peaceful and can be kept with similar-sized species from Lake Malawi such as Placidochromis, Otopharynx, Lethrinops or Protomelas.

🏝️ Tank tips:
Prefers fine sand or smooth substrate.
Add rocks, pebbles, and stone structures to mimic their natural habitat.
Grows up to around 12 cm.
🌊 Ideal water values:
pH: 7.0–8.5 | GH: 9–30° | KH: 6–30 | Temperature: 24–27°C
A true showstopper for any Malawi aquarium. 💥

31/10/2025

👻⚡ The Black Ghost Knifefish (Apteronotus albifrons) ⚡👻
Originating from the rivers of South America, this mysterious fish gets its eerie name from Amazonian tribes who believed the souls of the dead inhabited them.

⚡ Fun facts:
• They’re scaleless and possess the fastest electrical discharge in the animal kingdom — up to 2,000 times per second!
• This electricity helps them hunt, navigate, and communicate.
• Mostly nocturnal, they use electrolocation to explore dark waters.

🐟 Care notes:
• Semi-aggressive — best with peaceful medium-sized fish like catfish or cichlids.
• Can grow up to 40cm and live 10–15 years.
• Prefer 24–28°C water with a pH of 6.0–8.0.
• As scaleless fish, they’re more prone to infections, so need extra care.

A truly spooky yet spectacular aquarium resident! 🌙✨
👉 What’s the eeriest fish you’ve ever seen?

30/10/2025

🎃🐟 Trick or Treat! 🐟🎃

It’s not just kids who like a delicious treat this Halloween—you can treat your fish too!
Tetra FunTips are a healthy snack that makes feeding time fun and rewarding 🥳
Thanks to .fishtanksaquascaping for showing how to use them! 😊