---
product_id: 355101422
title: "Fluval Sea Flex Saltwater Aquarium Kit 123L- Black"
brand: "fluval"
price: "€ 1178.36"
currency: EUR
in_stock: true
category: "Fluval"
url: https://www.desertcart.fr/products/355101422-fluval-sea-flex-saltwater-aquarium-kit-123l-black
store_origin: FR
region: France
---

# 25000K full spectrum coral-friendly lighting App-controlled Marine 3.0 LED Programmable 24-hour light timer Fluval Sea Flex Saltwater Aquarium Kit 123L- Black

**Brand:** fluval
**Price:** € 1178.36
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into brilliance with Fluval Sea Flex – where tech meets tranquility!

## Quick Answers

- **What is this?** Fluval Sea Flex Saltwater Aquarium Kit 123L- Black by fluval
- **How much does it cost?** € 1178.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/355101422-fluval-sea-flex-saltwater-aquarium-kit-123l-black)

## Best For

- fluval enthusiasts

## Why This Product

- Trusted fluval brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dynamic Ambiance Modes:** Choose from 3 pre-set lighting scenes—Sunny Reef, Deep Sea Glo, and Color Boost—to match your mood and marine life needs.
- • **Coral-Optimized Illumination:** Experience stunning 25000K color temperature lighting designed to promote healthy, vivid coral growth.
- • **Advanced Multi-Stage Filtration:** Dual independent chambers with Foam, Carbon & Biomax rings ensure crystal-clear water and a thriving ecosystem.
- • **Total Control at Your Fingertips:** Seamlessly customize vibrant reef lighting via the FluvalSmart App for a personalized aquatic masterpiece.
- • **Sleek Curved Design with Smart Features:** Modern black curved tank with integrated heater, protein skimmer, and easy feed door for effortless maintenance.

## Overview

The Fluval Sea Flex 123L Saltwater Aquarium Kit combines cutting-edge app-controlled Marine 3.0 LED lighting with a powerful multi-stage filtration system, designed to support vibrant coral growth and crystal-clear water. Its sleek curved glass design and programmable 24-hour light timer make it a standout centerpiece for any modern home or office, perfect for both beginners and seasoned aquarists seeking effortless control and stunning marine aesthetics.

## Description

Buy Fluval Sea Flex Saltwater Aquarium Kit 123L- Black online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- Full spectrum Marine 3.0 LED operates via the FluvalSmart App on your mobile device
- 25000 K color temperature lighting is ideal for growing vibrant corals
- 3 pre-set lighting conditions: sunny reef; deep sea glo; color boost

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0873VL625 |
| Additional Features | App-Controlled Lighting, Ideal Lighting for Corals, and Programmable Light Timer |
| Best Sellers Rank | #99,883 in Pet Supplies ( See Top 100 in Pet Supplies ) #718 in Aquarium Lights |
| Brand | Fluval |
| Brand Name | Fluval |
| Color | Black |
| Customer Reviews | 4.2 out of 5 stars 87 Reviews |
| Included Components | LED lighting system, filter, heater, protein skimmer, circulation pump, sea salt, black sand substrate, ceramic media, and tongs |
| Item Dimensions L x W x H | 82L x 40W x 39H centimeters |
| Item Shape | Rectangular |
| Item Type Name | Fluval Sea Flex Saltwater Aquarium Kit - 123 L (32.5 US gal) - Black |
| Item Weight | 22.11 Kilograms |
| Item weight | 22.11 Kilograms |
| Manufacturer | Fluval |
| Material | Glass |
| Material Type | Glass |
| Model Number | FS400 |
| Product Style | Contemporary |
| Product dimensions | 82L x 40W x 39H centimeters |
| Specific Uses For Product | Indoor |
| Tank Volume | 123 Liters |
| Tank volume | 123 Liters |
| Target Species | Fish |
| UPC | 015561346580 015561149945 |
| Unit Count | 1 Count |
| Vivarium Type | Aquarium |

## Product Details

- **Brand:** Fluval
- **Material:** Glass
- **Product dimensions:** 82L x 40W x 39H centimeters
- **Special features:** App-Controlled Lighting, Ideal Lighting for Corals, and Programmable Light Timer
- **Tank volume:** 123 Liters

## Images

![Fluval Sea Flex Saltwater Aquarium Kit 123L- Black - Image 1](https://m.media-amazon.com/images/I/51+KAmFbb0L.jpg)
![Fluval Sea Flex Saltwater Aquarium Kit 123L- Black - Image 2](https://m.media-amazon.com/images/I/61IXrquiB9L.jpg)
![Fluval Sea Flex Saltwater Aquarium Kit 123L- Black - Image 3](https://m.media-amazon.com/images/I/61ty2oTuk3L.jpg)
![Fluval Sea Flex Saltwater Aquarium Kit 123L- Black - Image 4](https://m.media-amazon.com/images/I/71+m1KyCQ9L.jpg)
![Fluval Sea Flex Saltwater Aquarium Kit 123L- Black - Image 5](https://m.media-amazon.com/images/I/71HW3wbeZbL.jpg)

## Questions & Answers

**Q: What’s the difference between the salt and fresh water ?**
A: Salt water is much more complex! Fish are a lot more expensive and balancing the water is much more time consuming than freshwater! The a$$ hat above is a jerk!

**Q: How much clearance do you need on top to access filters etc...**
A: lets say the filter sponges are around 8 inch long and lift straight up in the center so lift the lid off and then filter 8 to 12 inches but you could go tighter if your good and not clumsy

**Q: What are the pump specs? and should I upgrade?**
A: Pump Output : 810 L/h (214 US Gal/h)- 120V/60 . remember the filter is set up to operate thru sponge so you realy dont want to speed up. i just had a friend ask and we are working on adding a fluval 307 i may drop down to a 207. Better to add a canister.

**Q: Can you use this aquarium for freshwater or does it have to be saltwater ?**
A: the LED is the saltwater version lighting  so could cause algea issues in fresh. You can buy a replacement Aquasky LED. And yes you can run frest water just dont leave the light on to long you will get algea .

## Frequently Bought Together

- Fluval Flex 32.5 Marine Salt Water Aquarium Kit - Fish Tank for Fish, Coral & More - Comes with LED Lights, Filtration System & More - 32.5" x 15.75" x 15.35" - 123 L, 32.5 Gal. - Black
- Fluval Sea PS1 Protein Skimmer for Aquarium, for All Breed Sizes
- Fluval M 150-Watt Submersible Aquarium Heater – Reliable, Compact Heating with Mirror Technology for Fresh & Saltwater Tanks Up to 45 Gallons

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**Shop now:** [https://www.desertcart.fr/products/355101422-fluval-sea-flex-saltwater-aquarium-kit-123l-black](https://www.desertcart.fr/products/355101422-fluval-sea-flex-saltwater-aquarium-kit-123l-black)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-27*