Description
Aqua One Decorative Gravel 2kg Neon 4 To 6mm No.2 — Multi-colour neon gravel mix in a finer 4–6 mm grade for kids’ tanks
Ask a child to pick the gravel and the answer is usually all of the colours at once, which is exactly what the Neon mix is. Aqua One Decorative Gravel 2kg Neon 4 To 6mm No.2 (SKU: 10210) is Aqua One’s multi-colour neon blend in a 2 kg bag, graded No.2 at 4 to 6 mm, a step finer than the 7 mm single colours in the same range. Aqua One lists the Neon gravel in this one size and describes its decorative gravel as aquarium-safe stone in designer colours that brings colour and life into the aquarium, rated for coldwater and freshwater tropical tanks. It is the bag for a first goldfish or betta tank, a classroom aquarium or any set-up where bright is the brief.
The 4–6 mm grade sits between a fine sand and a pebble: small enough to pack into a smooth, even floor that small ornaments stand on without wobbling, yet still heavy enough that a gravel cleaner, used with a light touch, lifts the waste and drops the stones back. Decorative gravel runs at roughly 1.5 kg per litre, so this bag is about 1.3 L, a 2 cm bed over a 30 × 20 cm base or a bright feature area inside a plain substrate. Aqua One also suggests the same gravel for pot plants, fountains and candle holders. Give it a thorough rinse in a bucket before use; the finer grade carries more dust than the coarser colours, and a second rinse is worth the minute it takes.
Usage & Application
When to Use
- Children’s aquariums: A bright, multi-coloured floor for a first goldfish or betta tank.
- Classroom and office nano tanks: Colour that reads from across a room.
- Accent areas: A neon patch under a castle or a cave inside a natural-gravel bed.
- Craft projects: Vases, candle holders and pot plants, as Aqua One suggests.
Substrate & Placement Guide
- Rinse twice: Finer gravel carries more dust; stir in a bucket and tip off until the water stays clear.
- Lay 2 cm: A shallow, even bed suits a small tank and keeps waste within reach of the vacuum.
- Vacuum lightly: Hold the gravel cleaner just above the bed so the 4–6 mm grains tumble and fall back.
- Keep it bright: A weekly pass with the vacuum stops a brown film dulling the colours.
Product Specifications & Highlights
Key Features
- Neon multi-colour mix: Several bright shades blended through the bag.
- No.2 grade, 4–6 mm: Finer than the 7 mm colours, for a smoother floor.
- Aquarium safe: Aqua One rates it for coldwater and freshwater tropical tanks.
- One size, 2 kg: Aqua One lists the Neon mix in the 2 kg bag only.
- Decor duty too: Works in pot plants, fountains and candle holders.
Product Details
- Brand: Aqua One (Kong’s, Australia)
- SKU: 10210
- Barcode (GTIN/EAN): 9325136025316
- Product Type: Gravel > Coloured Decorative Gravel
- Colour: Neon mix
- Grain Size: 4–6 mm (No.2 grade)
- Net Weight: 2 kg (about 1.3 L of gravel)
- Coverage: Roughly 2 cm deep over a 30 × 20 cm base
- Preparation: Rinse thoroughly before use
- Maker’s Item: Aqua One 10210, Neon 2 kg (4–6 mm)
- Target Environment: Coldwater and freshwater tropical aquariums


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