7 Litre (780g) Bag. 780g (7 litre) bag. Below 10°C, stop feeding Tetra Pond Sticks and switch to Tetra Pond Wheatgerm Sticks. Tetra 7 Litre Pond Sticks Floating Fish Food. TetraPond Floating Food Sticks are an ideal maintenance diet that provides nutrition for energy, longevity, and overall health.