ARKA POND Substrate Cleaner Gravel (5000 ml.)

Biological sludge breakdown in garden ponds – ARKA Substrate Cleaner Pond specifically breaks down sludge, mud and organic deposits on the pond floor. For clean bottom zones, less debris and a stable pond environment. Breaks down food residue and plant waste – The bacteria blend with simulated mangrove mud reduces waste in the pond and removes harmful gaseous compounds. Helpful with stone and gravel bottoms. Breaks up phosphate and nitrate deposits – Substrate Cleaner Pond unlocks deposits in the substrate and rocks, even where mechanical vacuuming is difficult. For better water quality and fewer algae nutrients. Clear dosing by pond size – For 300 to 19,000 litres, start with 15 ml per 100 litres, from 19,001 litres 12 ml per 100 litres. On days 8, 15, 22 and 29 add 10 ml per 100 litres. Suitable from 7 °C water temperature. Lasts for up to 50,000 litres – The 5000-ml canister lasts for up to 50,000 litres of pond water. Slight cloudiness disappears after 24–72 hours; switch off UV clarifiers for at least 24 hours after each dosing.