Start with Start Up (once, 25 ml per 1,000 L) to get the nitrogen cycle going. Then dose Ammonia Shield on day 1 and day 6 and Nitri Balance on day 4 and day 14. With Bacto Gel the bacteria attach extra well to the filter medium. Measure ammonia and nitrite weekly during this period.

Do not feed below 5 °C. Between 5 and 15 °C choose the easily digestible Wheat Germ, sparingly. From about 15 °C Staple is the daily feed, with Grower or Top Koi Boost for growth and colour in the warm season. Use the temperature gauge on the homepage for tailored advice.

Feed 2–4 times a day, depending on fish size and water temperature, and no more than the fish eat within 5 minutes. Remove feed that is left over. Below 10 °C feed less, below 5 °C not at all.

Yes. UV light and ozone also kill beneficial bacteria. Switch off the UV lamp for 12 hours (Ammonia Shield, Nitri Balance) to 24 hours (Start Up, Pond Clean) after dosing. The exact time is on the label and on the product page.

No, do not use them at the same time and not together with medication either. Measure your KH and GH first and dose the products on different days. Target values: KH 8–9 and GH 11–12.

Length × width × average depth in metres × 1,000 = number of litres. A pond of 4 × 3 m with an average depth of 1.2 m therefore holds about 14,400 litres. Every product page has a dosage calculator that works out the dose for you.

Pond Clean is a bacteria mix for the whole system and helps break down organic waste in pond and filter. Sludge Cleaner targets slowly degradable bottom sludge. Sludge-Up works with active oxygen and brings sludge to the surface so you can remove it easily.

Yes. Our feed is a complete feed for koi and all pond fish, and the water conditioners are intended for ponds with koi and other pond fish. Always follow the dosage on the label.

Store liquid products tightly closed, out of direct sunlight and not above 38 °C; shake before use. Store powders and feed cool and dry in the closed original packaging. Always out of the reach of children.

Certainly. Email us at info@bisokoaqua.com with your pond volume, the water temperature and any measured values (KH, GH, pH, ammonia, nitrite). We will give you personal advice.