Unipac 6mm Round Aquarium Gravel 2kg

• Natural peas gravel, ideal for creating a natural look aqua scape
• Produced by a specialist aquatic substrate supplier
• This gravel varies in sizes up to 6mm
• Also used in large sand filter systems to bed around the laterals

Unipac is a leading UK supplier of aquatic gravels and sand, be safe in the knowledge the products you are buying are totally safe for the aquatic environment. How much gravel do i need in my tank? As a very rough guide for every 1ft length of Aquarium approx 10Kg of sand or gravel is required. This will give approx depth of 1.5" or 40mm The calculation is as follows Length x Width divided by 10. This then give the weight required in Lbs. To convert this to KG just divide the answer by 2.2 For example on a 4ft x 1.5ft long tank 48(inches) x 18(inches) = 864 divided by 10 = 86.4(lbs) divide again by 2.2 = 39.27KG