• 14,000K, 31-LED fixture — 16 W, 1,383 lumens, with touch-start day and night lighting modes built into the canopy.
• Three-stage filtration built in — foam block for mechanical filtration, BIOMAX for biological filtration, activated carbon for chemical filtration, all housed in the rear chamber.
• 500 L/h circulation pump — drives water through the filter chamber and back into the display via an adjustable output nozzle.
• Expandable rear chamber — sized to accept an optional Fluval Sea CP1 or CP2 circulation pump and a Fluval M50W heater, so extra flow and heating clip straight in without external equipment.
• All-glass construction — glass aquarium and cover, not acrylic, so it takes standard glass-safe magnet cleaners and tools.

At 56 cm long, the Evo 52L suits a stand or cabinet with at least that footprint plus clearance for the rear chamber's cabling and any additional pump or heater fitted there. Allow extra depth behind the tank for the power leads from the LED transformer and circulation pump.

Included: glass aquarium with integrated cover, 14,000K LED lighting system with low-voltage transformer, built-in circulation pump with output nozzle, foam filter block with handle, BIOMAX biological media insert, activated carbon insert.

Not included: heater (the rear chamber accepts a Fluval M50W, sold separately), protein skimmer, marine salt mix and RO/DI water, live rock or live sand, a second circulation pump (CP1/CP2, if extra flow is wanted), a stand or cabinet, and livestock. This is a filtration-and-lighting system, not a cycled, stocked reef tank out of the box.

Suitable for a nano marine fish-only or soft-coral/LPS reef display, or as a well-lit freshwater planted nano tank. Not suitable, as supplied, for SPS corals or high-light livestock — Fluval doesn't publish PAR figures for this fixture, and 16 W across 52 L is a moderate light load rather than a high-output reef fixture; anyone planning SPS should budget for a supplementary light or an upgrade path before stocking. Not suitable for a heated tropical freshwater setup without adding the M50W heater, which is not included.

Rinse the foam block, BIOMAX and carbon inserts before first use. Fill and run the filter and pump for 24–48 hours before adding substrate, aquascape or livestock, to confirm the pump primes correctly and check for leaks. If fitting the optional CP1/CP2 pump or M50W heater, install both in the rear chamber before final fill, following Fluval's setup guide for cable routing.

The LED draws 16 W; run continuously that's about 140 kWh a year, or roughly $42 a year at 30c/kWh. Fluval doesn't publish a separate wattage figure for the built-in circulation pump, so that draw isn't included in this estimate — expect the real running cost to be a little higher once the pump, and any added heater, are counted. Fluval doesn't publish a dB rating for this kit either; the built-in pump is described across retailers as quiet, consistent with other chamber-mounted nano pumps, but no figure exists to publish here.

A Fluval M50W heater for tropical marine or freshwater temperatures. A Fluval Sea CP1 or CP2 circulation pump for tanks running higher-flow corals or a deeper sand bed. A refractometer and basic reef test kit for anyone setting this up as a marine tank rather than freshwater.

Covered by Fluval's standard warranty against manufacturing defects, in addition to your rights under Australian Consumer Law. Glass aquarium — handle with care in transit; report any transport damage before filling.

Is the Fluval Sea Evo 52L reef-ready out of the box?

It's reef-capable for soft corals and LPS with the stock lighting and flow, but it doesn't include a heater, protein skimmer, live rock, salt mix or livestock — budget for those separately before calling it a complete reef setup.

Can I run this as a freshwater tank?

Yes — the filtration and lighting suit a freshwater planted nano tank as well as a marine one; just add a heater for tropical species, since one isn't included.

Does it come with a heater?

No. The rear chamber is sized to accept a Fluval M50W heater, sold separately.

What's the difference between this and the Fluval Evo 13.5 US gallon kit?

They're the same tank — 52 L is the metric figure for the 13.5 US gallon size sold in North America. Specifications are identical.

Can I add a second pump for more flow?

Yes — the rear chamber has room for a Fluval Sea CP1 or CP2 circulation pump alongside the built-in 500 L/h pump, for tanks that need more movement than the stock pump provides.