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Fluval EVO XII 13.5 Gallon Saltwater Kit
An all-in-one nano reef that's reef-ready
- All-in-one design with concealed rear filtration chamber
- Powerful reef-capable LED for soft and LPS corals
- Bright, even light spread across the 13.5-gallon footprint
- Included circulation pump tuned for nano reef flow
- Honeycomb overflow keeps livestock out of the filtration
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Pros
- Strong stock LED actually grows corals out of the box
- Concealed rear chamber hides all the equipment cleanly
- Three-stage filtration with room for media tweaks
- Good flow and surface skimming for a nano reef
- Forgiving 13.5-gallon volume for a small reef
Cons
- No heater or protein skimmer included
- Rear chambers are tight for adding gear
- Stock return flow may need adjusting for corals
- Open top allows evaporation and the occasional jumper
At a glance
An all-in-one nano reef that's reef-ready
The Fluval EVO XII is one of the most reef-ready nano kits you can buy, pairing a genuinely capable LED with tidy hidden filtration.
- All-in-one design with concealed rear filtration chamber
- Powerful reef-capable LED for soft and LPS corals
- Bright, even light spread across the 13.5-gallon footprint
- Included circulation pump tuned for nano reef flow
- Honeycomb overflow keeps livestock out of the filtration
Product Specifications
- Volume
- 13.5 gallons
- Type
- All-in-one nano reef
- Lighting
- Reef-capable LED
- Filtration
- 3-stage rear chamber
- Flow
- Included circulation pump
- Heater
- Not included
Why we recommend the Fluval EVO XII 13.5 Gallon Saltwater Kit
Plenty of all-in-one nano kits look the part but ship with a light that can’t keep coral alive. The EVO XII avoids that trap. Its included LED is genuinely reef-capable, spreading bright, even light across the footprint with enough intensity to grow soft corals and many LPS without an immediate upgrade. For a kit at this size, that’s a real head start.
The rest of the package follows through. A honeycomb overflow feeds water into a concealed rear chamber housing three-stage filtration, so mechanical, chemical, and biological media all sit out of sight. The included circulation pump provides reasonable flow for a nano reef, and the 13.5-gallon volume is forgiving enough to hold salinity and temperature steadier than the tiniest pico tanks.
Who it’s for
This kit is aimed at hobbyists ready to try their first reef without piecing together separate components. It’s equally good for an experienced keeper wanting a tidy nano on a desk or counter. You’ll want to add a heater, since none is included, and many reefers slot in a small skimmer or run extra media in the rear chamber. The space back there is admittedly tight, but the strong light and clean design make the EVO XII one of the easiest paths into nano reefing.
The Bottom Line
The Fluval EVO XII is one of the most reef-ready nano kits you can buy, pairing a genuinely capable LED with tidy hidden filtration. Add a heater and a small skimmer if you like, and it becomes an excellent first saltwater reef.
View on Amazon →As an Amazon Associate, AquaticRig earns from qualifying purchases.
Frequently Asked Questions
Can the stock light grow corals?
Yes. The included LED is reef-capable and handles soft corals and many LPS, which is unusual for a kit this size.
Does it include a heater?
No. You'll need to add a heater, since saltwater reef tanks must hold a stable tropical temperature.
Is a protein skimmer necessary?
Not strictly. Many keepers run it skimmerless with good water changes, though a small nano skimmer fits in the rear chamber if you want one.
Is 13.5 gallons good for a first reef?
It's a solid nano size, large enough to stay reasonably stable while small enough to be manageable and affordable to stock.
How much room is in the rear chamber?
Enough for the included filtration plus a heater and some extra media, but it's tight, so plan your equipment carefully.