Description
Aqualube Silicone Lubricant 5g — Silicone grease for filter O-rings, impeller shafts and tap fittings
Most canister filter leaks start with a dry O-ring that was forced back into its groove, and most seized taps were simply never greased. Aqualube Silicone Lubricant 5g (SKU: 10400) is Aqua One’s Aqua Lube, a 5 g tube of silicone lubricant for the seals and moving parts inside aquarium equipment. Aqua One states that Aqua Lube maximises the life of O-rings and moving parts, lubricates O-rings and impeller shafts so they last longer, and stops them becoming stuck or dry. It is intended for all aquarium equipment with O-rings and impellers, which takes in canister and internal filters, ball valves, quick-release taps and the head seals on pumps and UV units.
The maker’s list of benefits is specific: it helps minimise stress on fittings when connecting and disconnecting, prevents O-rings from drying out or sticking, protects them from wear and tear, can be used on ball valves, taps and other moving parts, and makes future maintenance easier with less risk of damage to parts. Aqua One also notes that a little bit goes a long way, which is why 5 g is a sensible size: a smear the size of a grain of rice, spread with a fingertip around a clean, dry O-ring, is a full application, so one tube covers many filter cleans. Silicone grease is the type used on aquarium seals because it is compatible with rubber O-rings, where petroleum-based greases can swell and soften them; keep it off impeller magnets and out of the water itself.
Usage & Application
When to Use
- Canister filter cleans: Re-grease the head O-ring every time the filter is opened.
- Stiff taps and valves: Free up quick-release taps and ball valves that have become hard to turn.
- Impeller service: A trace on the shaft and rubber bushes of a filter or pump rotor.
- New equipment: Grease seals on a new filter before the first assembly so they seat without pinching.
How to Use
- Clean first: Rinse the O-ring and its groove and wipe both dry; grit under grease still leaks.
- Use a trace: A rice-grain amount spread thinly around the whole ring is enough.
- Seat and close: Lay the ring flat in its groove without twisting, then close the head.
- Keep it off magnets: Grease the shaft and bushes of an impeller, not the magnet or the chamber walls.
Product Specifications & Highlights
Key Features
- Silicone based: The grease type used on aquarium seals and taps.
- Extends O-ring life: Aqua One’s stated purpose for the product.
- Frees stuck fittings: Eases connecting and disconnecting taps and hoses.
- A little goes a long way: 5 g covers many filter services.
- Broad use: Filters, pumps, ball valves, taps and impeller shafts.
Product Details
- Brand: Aqua One (Kong’s, Australia)
- SKU: 10400
- Barcode (GTIN/EAN): 9325136154511
- Product Type: Maintenance > Silicone Lubricant
- Model: Aqua One Aqua Lube, item 10400
- Net Weight: 5 g
- Type: Silicone lubricant
- Suitable For: All aquarium equipment with O-rings and impellers, per Aqua One
- Application: Thin film on clean, dry seals and shafts
- Target Environment: Freshwater and marine aquarium equipment


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