• Automatic advance — dual solid-state, titanium-tipped sensors detect when the fleece has loaded and roll on a clean section, no app or internet connection needed.
• Drop-in fit — replaces a standard 4-inch filter sock holder directly; no plumbing changes.
• Continuous mechanical filtration — removes fine particulate before it breaks down into nutrients, which matters more on a nano volume that swings faster than a large tank.
• Low power draw — 10 W maximum, run from the included universal power supply.
• Each roll lasts around four weeks under typical nano bioload, varying with feeding and stocking.

The Nano ReefMat is designed for Red Sea's second-generation (G2) MAX Nano and Peninsula Nano systems, where it drops directly into the existing 4-inch filter sock slot. It also fits first-generation MAX Nano systems and non-Red Sea sumps that use a standard 4-inch sock holder, using the supplied adapter ring. Confirm your sock holder is the standard 4-inch size before ordering — the unit won't seat in a narrower or wider slot.

Rated flow through the unit is 950 L/h. That figure is the unit's working capacity with fleece in place — a nano sump pushing more than that through a single sock holder will bypass rather than filter, so check your return pump's actual flow against this figure rather than the pump's headline rating.

The only routine consumable is the fleece roll itself, replaced roughly every four weeks under typical stocking — sooner on a heavily fed tank, later on a lightly stocked one. Wipe the sensor tips at each fleece change; a film of algae on the titanium tips is the most common reason a roller stops advancing on schedule.

• Suitable for: nano and compact all-in-one saltwater/reef systems up to around 200 L with a standard 4-inch filter sock holder.
• Not suitable for: freshwater systems, or sumps larger than a nano volume — Red Sea's ReefMat 250, 500 and 1200 are sized for those.

Mains-powered via the included plugpack; keep the plugpack itself clear of splash zones in the usual way for any aquarium electrical device. The drive unit runs on low-voltage 12 V DC, not mains voltage, inside the wet section.

• Nano ReefMat Drive Unit and Sensor — the complete spare for a roller that's stopped advancing.

Covered by Red Sea's standard warranty against manufacturing defects, in addition to your rights under Australian Consumer Law. Ships from Nick's Aquarium Oceanarium Terrarium, North Lakes.

Do I need the app to use it?

No. The Nano ReefMat runs fully automatically from its own sensors — no app or internet connection is required, unlike some of Red Sea's larger smart hardware.

Will it fit a non-Red Sea sump?

Yes, provided the sump uses a standard 4-inch filter sock holder. An adapter ring is supplied for non-Red Sea and first-generation MAX Nano setups.

How do I know when to change the fleece?

You don't need to watch for it — the sensors detect when the loaded section is full and advance a clean strip automatically. You'll only need to fit a fresh roll once the current one is used up, roughly every four weeks.

Is it reef safe?

Yes — it's designed specifically for reef and saltwater systems and doesn't add anything to the water column beyond the mechanical filtration itself.