Not everyone wants to deal with planning, laying out, and piping filtration systems in their aquariums. Many of us enjoy some customizability to an extent, but some features are better off being pre-installed. That’s where all-in-one aquariums come in. All-in-one fish tanks eliminate the hassle of setting up filtration systems and provide other features already built in. Additionally, all-in-ones have a sleek appearance, making them excellent showpieces in a home. There are many different brands, and not every all-in-one aquarium is built the same. This article will discuss the top 6 all in one saltwater aquariums currently out on the market.
This list is formulated from information provided by fishkeepers I have talked to, forum posts, and product reviews. There are many great all-in-ones out there, but this list outlines the ones that stuck out to me.
1. Innovative Marine – NUVO Fusion Pro 2
You can’t go wrong with just about anything Innovative Marine related. The company creates some fantastic aquariums. Many of their products, especially their aquariums, are highly rated. The NUVO Fusion Pro 2 made this list because of the incredibly positive reviews reflecting its quality. There are a handful of models under the Fusion Pro 2 umbrella, but this article will hone in and discuss the features of the IM 25 NUVO Fusion Pro 2.
The Innovative Marine 25 NUVO Fusion Pro 2 is bundled as a ready-to-run, rimless lagoon-style aquarium that works equally well for both freshwater and saltwater aquariums. The low-iron 8 mm glass keeps the display clear and bright. The all-in-one rear filtration chamber houses a built-in overflow and comes pre-fitted with a removable 200-micron filter sock plus a CustomCaddy media basket. Inside the basket, you get three stages of filtration from the start: mechanical fiber balls to trap debris, ROX 0.8 premium carbon to polish the water and remove discoloration, and a coarse GFO pack to help control phosphate. However, you can customize the filter media however you see fit. You can purchase the Innovative Marine 25 NUVO Fusion Pro 2 Aquarium on Amazon, BulkReefSupply, and Innovative Marine’s website.
Filtration, Circulation, and more
Circulation is handled by a MightyJet DC return pump (326 GPH) with a controller so you can dial flow up or down to match your livestock. The included dual-direction Nuvo nozzles let you split and angle the return stream, creating cross-currents or eliminating dead spots. For ease of use, the kit also includes adjustable water-level risers, a MicroMag glass cleaner, a SafeScreen mesh lid, and a fully assembled APS aluminum pedestal in black or white. Altogether, the PRO 2 bundle offers a matched pump-and-filtration system sized for the tank, giving new or experienced aquarists a balanced starting point without needing to piece together equipment.
2. Red Sea – MAX NANO G2 Peninsula Aquarium (26 Gal)
Next on the list is the Red Sea MAX NANO line of aquariums. This article will specifically discuss the 26-gallon version of this line, but there are a handful of sizes ranging from 20 to 53 gallons. The Red Sea MAX NANO G2 Peninsula is a 26.4-gallon, rimless reef-ready aquarium with an elegant peninsula layout that looks polished from multiple viewing angles. Built from 8 mm ultra-clear glass, it offers a bright, distortion-free display and a compact footprint (17.7″ L × 23″ W × 17.7″ H). Matching black or white cabinets are available for a seamless, furniture-grade presentation, and Red Sea backs the system with a five-year warranty (three years standard plus two on registration). This product can be purchased on BulkReefSupply, SaltwaterAquarium, and other online retailers.
Integrated Lighting
A Wi-Fi–enabled ReefLED G2 60 fixture is included, designed for coral growth and coloration with a spectrum that’s fully utilized by photosynthetic organisms. Through the ReefBeat app, you can access preset lighting programs, sunrise/sunset and lunar cycles, random cloud effects, and an acclimation schedule for new corals. This makes it incredibly easy to dial in both performance and aesthetics.
Filtration & Water Management
The rear sump comes fully equipped with a 250 GPH Sicce return pump, Nano XL protein skimmer, 225-micron filter sock, foam bubble trap, and a charge of 100 g Reef-Spec carbon. A removable surface skimmer enhances gas exchange, while all vital equipment connects to a convenient control panel that allows you to pause pumps or skimming for feeding and maintenance with a single touch. The system ships with a gravity-fed ATO (auto-top-off) to maintain stable salinity between refills.
Advanced G2 Upgrades
Two notable G2 improvements make the tank highly adaptable: it’s ReefATO+ ready, allowing seamless integration of Red Sea’s advanced auto-top-off, temperature monitor, and leak detection unit, and it is NanoMat ready, so the standard filter sock can be swapped for an automatic fleece roller for higher-capacity mechanical filtration. Both devices integrate with the ReefBeat app, giving you centralized control and real-time monitoring across your Red Sea gear. Both of these add-ons are sold separately.
3. Tideline All in One
The Tideline All-In-One aquariums are crafted by hand using high-quality automotive-grade glass, combining durability with clarity. The front and side viewing panels are made with low-iron glass, ensuring colors from fish, corals, and plants appear vibrant and true-to-life. Each model includes a self-leveling mat, helping to provide a stable and safe foundation for your setup. This line of aquariums is a little harder to find, but you can check out Tideline All in One aquariums on AquariumSpeciality.
Filtration System
Each Tideline AIO features a spacious rear filtration compartment that can be customized to fit your needs. Depending on tank size, models come with either foam block filtration (7.1G, 11.3G, 13.4G) or a rectangular filter sock (20.5G, 21.4G, 47G). The larger 47G Lagoon includes dual 3″ × 5″ filter socks, offering enhanced mechanical filtration. The layout makes it easy to adapt your system with different types of media or equipment upgrades over time.
Circulation & Equipment
All Tideline AIO aquariums come ready to run with a matched return pump and plumbing. The 47G Lagoon includes a MY-25L return pump rated at 375 GPH, giving solid baseline circulation for both freshwater and saltwater applications. This built-in flow system reduces guesswork and ensures compatibility right out of the box.
Size & Versatility
The Tideline AIO line spans several tank sizes, making it accessible for both new hobbyists and experienced aquarists. The 47G Lagoon measures 36.5″ × 18.5″ × 15.75″ with 10 mm glass thickness and is designed to fit perfectly on common 36 × 18-inch aquarium stands such as the Classic, Elegance, Heritage, or Vintage lines. With its large footprint and shallow lagoon-style proportions, it provides excellent space for aquascaping while still maintaining an easy-to-maintain water volume.
4. CADE Reef S2
The CADE Reef S2 is part of CADE’s Classic range, designed for advanced reef aquarists who want uncompromising quality and performance. Each tank is built from ultra-clear Opti-Clear glass with flat polished edges, delivering outstanding clarity and a premium look. A laser-etched CADE logo marks authenticity, while the base is pre-laminated in white, making it especially well-suited for bare-bottom reef setups. The rimless construction, clean silicone work, and precision finish highlight CADE’s reputation for craftsmanship. The Algaebarn has the full line of CADE aquariums available.
Silicone & Construction Quality
All seams are bonded with German Wacker silicone, known for its strength, clarity, and durability. Applied with exact precision, it creates razor-sharp edges and uniform gaps for both strength and aesthetics. This meticulous approach ensures the aquarium not only looks seamless but also provides long-lasting integrity for demanding reef environments.
Weir & Filtration System
The slimline Twin Intake Weir is a standout feature, designed for silent operation while efficiently pulling water from multiple levels in the tank. This dual intake system also functions as a safety net: if one intake is blocked, the other continues to operate, reducing the risk of overflow. The weir, ATO reservoir, and plumbing are all neatly concealed behind a black glass rear panel, maintaining a minimalist, distraction-free display.
Additional Features
CADE includes a sleek aluminum Jump Net, fully assembled, to protect livestock while preserving the open-top, rimless aesthetic. The system also features a large ATO (auto top-off) reservoir integrated into the design, ensuring stable water levels and reduced maintenance. Every aspect of the CADE Reef S2 emphasizes a blend of functionality, durability, and visual elegance, making it a premium choice for reef keepers.
5. FIJI Cube – 32 Gallon Rimless All in One
The Fiji Cube AIO Nano Tank Series is built with ultra-clear, low-iron glass for excellent visibility and vibrant display of fish and corals. Each tank features beveled glass edges and precision-applied black silicone for a sleek, high-quality finish. Compared to many competitors, Fiji Cube uses thicker glass, giving the tank added strength and durability without sacrificing elegance. A leveling rubber mat is included to ensure stability and protect the aquarium base. You can purchase this aquarium or other-sized all-in-ones directly from FIJI Cube.
Filtration System
Fiji Cube aquariums use a three-stage filtration system located in the rear sump. Water first passes through a filter sock for mechanical filtration, then enters a chamber that can house a protein skimmer or refugium, before finally moving into the return pump chamber. The included Fiji Cube Modular Media Basket provides additional flexibility, allowing hobbyists to customize filtration media to match their tank’s needs. The design also features top and bottom weirs, pulling water from both the surface and bottom of the aquarium. This helps remove surface films while also clearing detritus from the substrate level.
Equipment & Flow
The tank comes equipped with a Fiji Flow 550DC Nano Pump, paired with a digital flow controller that lets you fine-tune circulation to suit your livestock. A direction-adjustable return nozzle provides additional control, making it easy to eliminate dead spots or create more dynamic water movement. For added flexibility, the filter sock is replaceable with either 200-micron felt or nylon options, depending on your preference.
Versatility & Features
With its efficient sump design and thoughtfully planned chambers, the Fiji Cube Nano Tank provides enough space for both equipment and aquascaping. The refugium/protein skimmer chamber supports advanced filtration methods, while the rimless, low-iron glass design ensures a modern look that blends style with function. By combining thicker glass, a modular filtration approach, and premium components, Fiji Cube offers a feature-rich all-in-one nano system tailored to both new hobbyists and experienced reef keepers.
6. Innovative Marine – SR Pro 2
This line of aquariums comes in 60, 80, and 120 gallons. This article will discuss the 60 gallon model. The Fusion SR Pro 2 Full Size Series is a 60-gallon rimless all-in-one (AIO) aquarium built with safety, simplicity, and style in mind. Constructed from 10 mm low-iron glass with beveled and polished edges, the tank offers excellent viewing clarity while ensuring strength and durability. Signature black silicone enhances the clean look, while a pre-installed leveling mat and pre-assembled SafeScreen mesh lid add security and convenience. With its shallow reef dimensions (about 35″ × 24″ × 16″), the aquarium provides a wide, open footprint perfect for aquascaping flexibility. These aquariums are available on Innovative Marine, BulkReefSupply, and other retailers.
Filtration & Flow
Hidden behind the tank’s seamless acrylic overflow wall is a fully integrated AIO filtration system. The design includes an emergency overflow for safety, a removable 200-micron filter sock, and a full-size CustomCaddy media basket loaded with PurityPack media: mechanical fiber balls, ROX 0.8 premium carbon, and high-capacity GFO packs. Dual MightyJet DC return pumps (538 GPH each) with controllers deliver customizable flow, while four Nuvo nozzles and high-tide water risers allow aquarists to shape circulation and eliminate dead spots. All components are designed to stay hidden yet easily accessible for routine maintenance.
Equipment & Accessories
Each Fusion SR Pro 2 includes thoughtful extras to streamline setup and upkeep. A Micromag glass cleaner helps maintain clear viewing panels, while flexible hoses, return elbows, and directional flow nozzles give additional flow options. The system also incorporates an integrated emergency overflow and adjustable water-level risers, features usually found in higher-end reef systems. These additions make it both beginner-friendly and robust enough for advanced reef keepers.
APS Stand
Supporting the tank is an APS (Aluminum Profile Series) stand, engineered for strength and longevity. Built from anodized, corrosion-resistant aluminum, the stand is lightweight, warp-proof, and 100% recyclable. Its modular design comes semi-assembled with integrated hardware, magnetic door latches, and side access doors for convenience. The spacious interior accommodates sumps or other equipment, and pre-cut PVC foam boards are included for top and bottom stability. Finished in matte black, the stand offers a modern, furniture-grade appearance that complements the tank’s rimless design.
Final Notes
Today’s all-in-one and premium reef aquariums give hobbyists more options than ever to match their style, experience, and goals. Whether it’s the plug-and-play simplicity of the Red Sea MAX NANO G2 Peninsula, the customization potential of the CADE Reef S2, the affordability of the Tideline AIO, the feature-rich design of the Fiji Cube Nano, or the spacious versatility of Innovative Marine’s Lagoon PRO 2 and Fusion SR Pro 2, each system offers a unique balance of design, filtration, and functionality.
By considering factors such as tank size, included equipment, and the level of control you want over your system, you can choose the aquarium that best supports your vision. whether that’s a minimalist nano reef or a full-scale shallow reef display. If you have experience with and of these aquariums, let me know. I’d love to learn what others think about them.