Natural Color Volcanic Substrate Black 2-4mm 5kg
Option: Black · 2–4mm
Black · 2–4mm is currently sold out
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About the Natural Color Volcanic Substrate Black 2-4mm 5kg
Heavily stocked planted tanks need water moving through the bed rather than stagnating in it, and a coarser ceramic grade is what does that. This one is 2-4mm in volcanic black, supplied as a 5kg bag, and it is perfect for aquarium planted and tropical fish tanks.
Roots penetrate the material easily and spread right through the bed, which is what a planted tank needs from its floor.
Specification
- Size: 2-4mm
- Colour: Volcanic Black
- Material: Ceramic
- Aquarium substrate for aquarium plants
- Good water and air penetrability
- Great substrate pebble for aquarium fish tank
- Supplied in 5kg bag
Working out how much substrate you need
To reach a Two Inch (2") gravel depth in your fish tank, measure up and follow these three steps:
- Multiply tank LENGTH by tank WIDTH in inches. Worked example: 47" Inches x 19" Inches = 893
- Divide that figure by 10. Worked example: 893 / 10 = 89.3
- Divide by 2.2 to convert to kilogrammes. Worked example: 89.3 / 2.2 = 40.5 KG REQUIRED
Rough guide for a 2" substrate / 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 substrate / gravel.
Delivery & returns
Order before 3pm Monday–Friday for same-day despatch. We deliver to the UK mainland, Northern Ireland and the Isle of Man. Full delivery & returns policy
Frequently asked questions
Specifications & downloads
Model: XF20702B
