Natural Color Purple / Navy Aquarium Gravel 4

Deep purple and navy sit somewhere between a natural dark bed and an outright novelty colour, which makes a 2kg bag of 4 - 6mm gravel a handy accent - a contrast strip along the front, a vivarium floor, or a planter that needs lifting.

It is a high-quality gravel, equally at home in aquarium fish tanks and vivariums, and it doubles as an excellent hobby and craft material or a general gardening product for brightening up plant pots.

Specification

• 4 - 6mm (gravel)
• Supplied in 2kg bag

Working out how much you need

To reach a Two Inch (2") gravel depth in your fish tank, measure up and follow these three steps:

1. Multiply tank LENGTH by tank WIDTH in inches. Worked example: 47" Inches x 19" Inches = 893
2. Divide that figure by 10. Worked example: 893 / 10 = 89.3
3. Divide by 2.2 to convert to kilogrammes. Worked example: 89.3 / 2.2 = 40.5 KG REQUIRED

Rough guide for a 2" gravel depth

• 60cm / 2ft TANK = 25 kg
• 80cm / 2.6ft TANK = 30kg
• 100cm / 3.3ft TANK = 35 kg
• 120cm / 4ft TANK = 40 kg

Treat these as approximates - you may well want a deeper or thinner layer of gravel.