How many litres do you need?
The rule of thumb: litres of Levende Pumella = grams of food a day ÷ 0.7. The rule applies to fish food with 45% protein.
| Food a day | Levende Pumella |
|---|---|
| 0.7 g | 1 l |
| 1.4 g | 2 l |
| 2 g | 3 l |
| 3 g | 5 l |
| 4 g | 6 l |
| 5 g | 8 l |
| 7 g | 10 l |
| 10 g | 15 l |
The figures are rounded up to whole litres: 3 g of food a day is 4.3 litres, so the table says 5.
New aquarium
The figures show what the stones can handle from the first day. If you are starting a new aquarium, add the fish gradually over a couple of weeks, and measure ammonia and nitrite 2–3 times a week for the first 14 days.
How we work it out
Food gives ammonia by the formula ammonia nitrogen in g a day = food in g a day × protein share × 0.092 (Timmons and Ebeling, Kentucky State University). 1 g of food with 45% protein gives 41 mg of ammonia nitrogen. Every litre of Levende Pumella is tested at 30 mg a day, so 1 litre corresponds to about 0.7 g of food a day.
If you are unsure, ask in the shop. Tell us the size of the aquarium, which fish you keep and how much you feed.