Pimp My Filter #28 - All Pond Solutions 1000EF / SunSun HW 302 Canister Filter

(FilterPro site has links to suppliers in other countries) This is a really decent filter for the price with a very low cost for the UK version (from All Pond Solutions) and it holds a good amount of media too - easily taking 2.4kg biohome ultimate. That makes it suitable for normally stocked tanks of up to 240 litres (63 US gallons) or a heavily stocked tank of around 120 litres (32 US gallons) if you want to achieve a full cycle. WHAT IS A FULL CYCLE? A full cycle is completed by bacteria - the aerobic part of biological filtration which processes ammonia to nitrite and nitrite to nitrate followed by an anaerobic part which processes nitrate into soluble nitrogen which bubbles off to the atmosphere. Therefore it requires a suitable amount of excellent quality filter media to be able to provide the environment for both aerobic AND anaerobic bacteria - that is what the various forms of Biohome does perfectly but even with such good media there are limitations and we recommend the following amounts for different stocking scenarios: (1 US gallon = 3.8 litres) (1kg = 2.2 lbs) Average community tropical aquarium = 1kg per 100 litres Average coldwater aquarium = 1kg - 1.5kg per 100 litres Predator aquarium = 1.5kg - 2kg per 100 litres Large cichlid aquarium = 1.5kg - 2kg per 100 litres Malawi / Tanganyikan aquarium = 1.5kg - 2kg per 100 litres Marine aquarium = 1.5kg - 2kg per 100 litres Average mixed fish pond = 1kg per 200 litres Average koi pond = 1kg per 150 litres You...