A few weeks ago, we published a blog post on how to upgrade your fluorescent tubes to LED aquarium lights. We wanted to share this post as our customers often ask how they can improve their aquarium lighting when bulb-replacement time rolls around. Not only are fish tank LEDs the latest on the aquatics scene, but they’re also the longest-lasting and the most energy-efficient.
Now, we’re launching a bonus blog post, this one specifically on how to upgrade Juwel fluorescent tubes to LED aquarium lights. Lots of our customers have Juwel fish tanks, so we figured a blog post purely about Juwel aquariums would be handy.
Here are three easy ways for Juwel tank fishkeepers to replace fluorescent tubes with LED aquarium lights.

1. Replace the light unit with a multilux light unit
Luckily, it’s easy to replace the entire light unit in any Juwel tank that has a multilux unit. If you have a Rio, Vision, Trigon, Lido, Panorama, or Delta fish tank, you can buy one of Juwel’s drop-in LED multilux light units. These LED light units will fit straight into your tank and are the same size as the older-generation fluorescent units.
Meanwhile, if you have a fish tank with a MonoLux or DuoLux cover, you can easily upgrade this cover with a PrimoLux unit. This replacement hood with LED lighting built in will also fit straight into your fish tank.
This picture on the left shows the official Juwel lighting compatibility table, which you can use to identify the light unit you need.
2. Purchase a compatible LED aquarium light tube
If your Juwel model isn’t listed above, don’t worry. Though there aren’t any like-for-like LED units for your T5 or T8 bulb unit available, you can buy a compatible LED aquarium light instead. These tubes fit old T5 and T8 light units, which is great as long as your fluorescent light unit still works.

Bonus Tip
If you’re not sure of the difference between T5 bulbs, T8 bulbs, and LEDs, we have a blog post that explains the difference.
There isn’t a huge range of compatible lights available on the aquatics scene at the moment. But we’re keeping an eye on a new brand and look forward to stocking more compatible tubes soon. Meanwhile, take a look at these Arcadia LED lamp replacements.


3. Purchase a retrofit LED aquarium light tube
We have good news for Juwel fishkeepers who don’t have a multilux light unit or a working fluorescent tube unit. A retrofit standalone LED aquarium light tube will solve your problem. These fish tank lights have their own power sockets and ‘retrofit’ adapters. This means you can insert them into your T5 or T8 fluorescent light unit, even if it doesn’t work.
If you need more advice on upgrading to LED fish tank lights, feel free to chat with us.
About Warehouse Aquatics

The Warehouse Aquatics mission is to offer the most choice at the best prices when it comes to your fishes’ wellbeing. We use the products on our website ourselves and are well-versed in all things fish, so we can give you all the advice you need. We’re not just here to sell aquatic supplies. We’re also here to guide you through your journey as a fish owner and enthusiast.
As a small team, we love to hear from our customers, so please do join the Warehouse Aquatics social media community. We’re always up for a chat, and we’d love to share your aquarium photos with our followers.