Tetra UK

09/01/2026

🐠🔍 Fish Fact Friday! 🔍🐠
Did you know that most fish can’t close their eyes — because they don’t have eyelids? 👀

Instead, they rely on calm, dark environments to rest. So those peaceful moments when your tank lights dim? That’s their version of a good night’s sleep. 😴✨

Just another reminder of how fascinating (and unique!) our underwater friends really are.

Got a favourite fish fact? Share it below! ⬇️🐟

06/01/2026

Show us your snowy pond photos! ❄️

This outdoor tank and its lights look beautiful amongst the snow.
📷 Thank you to Reg Wilson for the photo.

04/01/2026

Aquarium New Year’s Resolution 🐠✨ #1
Take a moment to review your fish’s environment:

Is the substrate suitable for your species?
Do they have enough hiding places with plants or caves to feel safe and secure? 🪸🏞️

A well-thought-out environment can reduce stress and help your fish thrive all year long! 🌟

02/01/2026

Happy Motivation & Inspiration Day! 💪🐠

See how MR Brightfryed transformed a 105 L Tetra tank into a stunning Cardinal Island! 🌿✨

Dive into the full build on our YouTube channel and don’t forget to subscribe for more aquarium inspiration: https://www.youtube.com/watch?v=jT8CqbMa4o0 🎥💚

29/12/2025

Our Favourite Weekend of the Year: Aquatics Festival Highlights! 🐠🌿

Join us as we recap our first ever Aquatics Festival, a weekend packed with fun, inspiration, and incredible aquascaping! The highlight? The aquascaping contest, where creativity and skill came together in stunning displays. 🏆✨

Plus, enjoy behind-the-scenes moments including a factory tour and an exclusive dinner and tour at the zoo! 🐟🦓

Watch now for all the excitement and inspiration from this unforgettable weekend.

28/12/2025

Our goes to this stunning aquarium by tropicalworld2 🏆🐠

Do your furry (or not-so-furry) friends love your tank as much as you do? 😺

25/12/2025

🎄✨ Merry Fish-mas from Tetra UK! ✨🎄
We hope your day is fin-tastic, your tanks are merry & bright, and your fish are enjoying their very own Christmas feast-ivities! 🐠🍽️
Thanks for being part of our wonderful community this year — you really are the shoal package 💛

20/12/2025

The Rummy-nose Tetra 🎅✨
This little fish reminds us of a certain reindeer that will be visiting on Christmas Eve! 🦌🐟

They’re a colourful and lively addition to a tropical community tank. The Rummy-nose Tetra grows up to 5 cm and should be kept in groups of six or more, ideally in an 80 L+ aquarium.

💧 Water conditions:
Temperature: 24 °C – 31 °C (up to 33 °C for breeding)
Soft, acidic water: hardness ≤6 °dH
pH: 5.6 – 7.4

They thrive with other warmth-loving species such as small gourami, tetras, barbs, danios, Australian rainbows, and catfish like Ancistrus. 🪸

What fish are on your list for Santa this year? 🎄🐠

16/12/2025

Do you decorate your fish tank for Christmas? 🎄🐠

We’d love to see your festive setups! Share your photos with us! 📸✨

Remember: only use decorations that are safe for aquariums and bought from a reputable aquatics retailer. ❌ Some paints and materials can be toxic to fish.

If you want to get creative outside the tank, make sure any mains-powered lights are secure and cannot fall into the water. 💡⚠️

Thank you to on Instagram for this festive tank photo! 🎅🪸

15/12/2025

A blackwater biotope tank mimics the natural habitat of wild bettas 🐟🌿— think ponds, swamps, and streams with soft, acidic water and a dark, tannin-rich colour from decaying leaves and wood.

🎥 Video by: MR Brightfryed

A blackwater biotope tank mimics the natural habitat of wild bettas — think ponds, swamps, and streams with soft, acidic water and a dark, tannin-rich colour...

11/12/2025

❄️ Pond Top Tip: Dealing with Ice ❄️

If your pond ices over briefly — just a few hours in the morning — there’s no need to worry. Let nature take its course.

If the ice persists all day, create a small hole to allow air exchange:
- Pour a saucepan of hot water gently onto the ice.
- Or, float a ball on the pond before it freezes; remove it after ice forms to leave an air hole.

⚠️ Never smash the ice! Fish have very sensitive hearing, and sudden loud noises can cause unnecessary stress.

👉 How do you keep your pond safe in winter? Share your tips or tricks in the comments below!

09/12/2025

A fish tank isn’t just a Christmas gift! 🎄🐠

Thinking of giving an aquarium to a little one this festive season? Before you do, make sure you know what care and maintenance are needed to keep the fish happy and healthy. 🪸💦

A little preparation goes a long way to ensure your new aquatic friends thrive all year round! 🌟