- Sku: JWL101
Juwel Rio 125 LED Aquarium
The Juwel Rio 125 LED is the classic 33 gallon (125 liter) rectangular aquarium, made in Germany and delivered complete: MultiLux LED lighting in the lid, a Bioflow M internal filter with its Eccoflow 500 pump, a 100 W AquaHeat Pro heater and a safety base frame that lets it sit on any flat, level surface. At 81 x 36 x 50 cm it is the smallest of the Rio line and fits where bigger tanks cannot. Choose the aquarium alone, the matching SBX Rio 125 cabinet alone, or the set, in black, white, light wood or grey. Stock it from our fish and live plants, or browse more aquariums and stands. Need more room? See the Rio 180 LED, the Rio 240 LED, the Rio 290 LED, the Rio 350 LED or the Rio 450 LED.
What Is Built In
The lid carries the MultiLux LED unit with two replaceable 590 mm LED tubes, one DAY and one NATURE, 2 x 13 W, for a bright, natural spectrum that grows easy and medium plants. The Bioflow M filter sits in the rear corner inside the tank, a quiet internal system with five filter media and the Eccoflow 500 circulation pump rated around 132 gph at 5.5 W. The 100 W AquaHeat Pro heater sits inside the filter's water path, out of sight and protected from livestock, with silver contacts, a borosilicate glass body and TÜV and GS certification. The safety base frame spreads the load evenly, so no foam mat or special support is needed.
Features on Every Rio 125
Choose Your Configuration
Pick a configuration and a color above. Select a tab below for the full spec sheet.
| Spec | Aquarium Only | Cabinet Only | Aquarium + Cabinet Set |
|---|---|---|---|
| What you get | Rio 125 LED tank with lid, LED, filter, pump, heater | SBX Rio 125 cabinet | Both, color matched |
| Footprint | 81 x 36 cm (31.9 x 14.2 in) | 81 x 36 cm (31.9 x 14.2 in) | 81 x 36 cm (31.9 x 14.2 in) |
| Height | 50 cm (19.7 in) | 73 cm (28.7 in) | 123 cm (48.4 in) assembled |
| Weight, empty | 24 kg (53 lb) | 18.6 kg (41 lb) | 43 kg (94 lb) |
| Colors | Black, White, Light Wood, Grey | Black, White, Light Wood, Grey | Black, White, Light Wood, Grey |
Detailed Specifications
Click a tab to view the full specification sheet.
Rio 125 LED · 33 gal · complete system
The aquarium on its own, for an existing stand or a sturdy piece of furniture. Everything that runs the tank is included; you supply substrate, decor and water.
| Specification | Value |
|---|---|
| Volume | 125 L (33 US gal) |
| Dimensions (L x W x H) | 81 x 36 x 50 cm (31.9 x 14.2 x 19.7 in) |
| Weight, empty | 24 kg (53 lb) |
| Lighting | MultiLux LED, 2 x 13 W, replaceable 590 mm DAY and NATURE LED tubes |
| Filter | Bioflow M internal filter with five filter media |
| Pump | Eccoflow 500, about 132 gph (500 L/h), 5.5 W |
| Heater | AquaHeat Pro 100 W, adjustable, TÜV and GS certified |
| Base | Safety base frame, no underlay required |
| Water | Freshwater or saltwater |
| SKUs by color | Black JWL101, White JWL103, Light Wood JWL105, Grey JWL107 |
| Made in | Germany |
SBX Rio 125 · matching cabinet
The purpose-built stand for the Rio 125. Same footprint as the tank, doors that hide the hardware and a rating far above a full tank.
| Specification | Value |
|---|---|
| Model | SBX Rio 125 |
| Dimensions (L x W x H) | 81 x 36 x 73 cm (31.9 x 14.2 x 28.7 in) |
| Weight | 18.6 kg (41 lb) |
| Max load | 500 kg (1,102 lb) |
| Construction | Laminated board, two doors, interior storage, GS certified |
| Colors | Black, White, Light Wood, Grey |
| SKUs by color | Black JWL102, White JWL104, Light Wood JWL106, Grey JWL108 |
| Made in | Germany |
Aquarium + Cabinet Set · the complete display
Tank and matching cabinet together. One color, one pickup, a finished piece of furniture that only needs water and fish.
| Specification | Value |
|---|---|
| Includes | Rio 125 LED aquarium and SBX Rio 125 cabinet in the same color |
| Assembled height | 123 cm (48.4 in) |
| Footprint | 81 x 36 cm (31.9 x 14.2 in) |
| Weight, empty | 43 kg (94 lb) combined |
| Filled weight | About 170 kg (375 lb) with water, substrate and rock |
| Colors | Black, White, Light Wood, Grey |
| Made in | Germany |
Which Configuration Is Right for You?
Aquarium Only if you already have a level, load-rated stand or cabinet. Plan for about 150 kg (330 lb) once filled.
Cabinet Only to put an existing Rio 125 on the stand it was designed for, or to replace a damaged one.
Aquarium + Cabinet Set for a new setup. The colors match and the cabinet lines up with the base frame exactly.
Setting It Up
Assemble the cabinet on a level floor, set the tank on it and check level front to back and side to side before adding anything. Rinse your substrate, add hardscape, then fill with treated water and start the filter and heater together. Seed the filter with bottled bacteria, add livestock slowly over the first weeks, and keep the lid closed so the LED and the filter stay dry.
Recommended Pairings
- Seachem Stability to seed the Bioflow filter and cycle the tank faster.
- CaribSea Eco-Complete for a planted layout, or Super Naturals Moonlight Sand for a bright community tank.
- CaribSea Arag-Alive Fiji Pink if you are setting it up as a marine tank.
- Browse our fish and live plants.
FAQ
How long does a special order take?
Usually under 7 days. Order online and we will call you when it is at the store, ready to pick up.
Freshwater or saltwater?
Either. The included light, filter and heater cover a community or planted tank, a fish-only marine tank or a soft coral reef. Demanding stony corals would want stronger light.
Do I need the Juwel cabinet?
No. The safety base frame lets the tank sit on any flat, level surface rated for the filled weight. The SBX cabinet is the tidy option because it matches the trim and hides the hardware.
Can I change the light color?
Yes. The DAY and NATURE tubes are standard Juwel 590 mm LED tubes and can be swapped for other colors in the Juwel range.
Why pickup only?
A glass aquarium and a cabinet do not survive parcel shipping well, so we bring it in for you and hold it at the store.
Have a question?

Juwel Rio 125 LED Aquarium


