High energy efficiency movement pump for marine or fresh water aquariums.

Koralia G3 is the innovative and unique range of circulation and wave pumps, designed especially to work in reef aquariums, can also be suitable for fresh water tanks. Higher performances, lower energy consumption and quick and easy maintenance are the main features of the Koralia G3 series. The new exclusive Hydor design and technology guarantees a smooth start, continuous and powerful water flow, and can be further managed using the three special attachments and Dual Magnet Support System (DMSS).

CHARACTERISTICS

What’s in the Box

Hydor ship the Koralia G3 assembled and ready to mount. The parts diagram in the manual lists the pump as upper chamber, impeller, shock absorber, and lower chamber with pump body; those come to you built up as one unit. Everything below is what the carton holds.

• The Koralia G3 pump, assembled
• Three flow attachments — flow diffuser, small fish guard and medium fish guard
• Dual Magnet Support System: the internal suction cup with its magnet support, and the external suction cup with its magnet support
• Spiral cable protector, already fitted over the submerged length of cable
• Card separator between the two magnet halves, for storage
• Multi-language instruction leaflet

Flow with each supplied attachment

• No attachment fitted — 5000 l/h
• Small fish guard, for smaller fish and shrimp — 3500 l/h
• Medium fish guard, for small to medium fish and shrimp — 4000 l/h
• Flow diffuser, for a wide, gentle flow — 3700 l/h

The three attachments are not decoration — each one changes the flow figure, and Hydor publish what each does to it. Fit whichever suits the livestock; the pump runs on any of them or on none.

Safety & Precautions

The points below are Hydor’s own, from the English section of the Koralia G3 manual. The magnet warnings are the ones people skip and then regret.

Before you plug it in

• Check that every component is undamaged before the pump is put into service.
• Check that your mains voltage matches the voltage printed on the unit’s label.
• Do not run it dry — do not connect it to the mains unless it is completely immersed.
• Do not connect it if any part is missing.
• Do not connect it unless it is positioned on the supplied suction-cup and magnet support.
• Indoor use only, in water up to 35 °C (95 °F).
• It is an aquarium circulation pump and cannot be used as a filter pump.

Cable and mains

• The cable cannot be replaced or repaired. If it is damaged, the whole unit has to be replaced — do not attempt a splice.
• Do not cut the cable, and do not pull on it to unplug.
• Always disconnect gently, and make sure your hands are dry before touching any electrical connection.
• Keep every connection dry.
• Disconnect the pump, and every other appliance in the water, before putting your hands in the aquarium.

The magnets

• Keep the support out of reach of children — the attraction between the two halves is strong.
• Never let the two magnet halves snap directly onto one another.
• Within about 5 cm (2 inches) the magnets pull hard on metal objects and other magnets. Keep them away from blades, sharp objects and other magnets.
• Keep them at least 30 cm (12 inches) from pacemakers, credit cards and keys.
• When the pump is not in use, put the carton separator back between the magnets.

In service

• Make sure nothing blocks the pump’s surface while it is running.
• Make sure it cannot draw in sand. Hydor state that sand ingestion can seriously damage the unit and voids the guarantee.

Fitting and cleaning

• Unwind the cable fully, fit the attachment you want, then place the silicone DMSS support where the flow is needed.
• Immerse the pump completely and turn it into a vertical position so trapped air can escape the impeller chamber, then set it on the support.
• Avoid lateral contact with the aquarium glass — Hydor point this out specifically, because that is what causes the buzzing people mistake for a fault.
• The pump is designed to run safely on a timer with programmed intervals.
• To service it: hold the pump with one hand and pull the external magnet away with the other to release it, then take the pump chamber apart.
• Clean the impeller assembly and its chamber with a soft brush. No detergents, no solvents.
• Rinse the upper and lower chamber grids under running water, or brush off algae and residue, then reassemble in reverse order.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number, or email us if you would rather, and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.

Warranty & Support

This product is covered by warranty as per the manufacturer policy, against material and manufacturing defects from the date of purchase.

Warranty support is handled by us directly. Message our WhatsApp support with your order number and we will diagnose the fault first. Most cases are solved by replacing a single part, so you rarely need to send the whole unit. If the item does need to come back, it ships to our Delhi or Pune warehouse, whichever one served your order, and courier cost in both directions is borne by the customer. Your GST invoice is valid proof of purchase for the claim.