Freshwater

For tanks of ≤ 25 cm

For tanks of 5–5000 l

For tanks of ≤ 36 cm

For tanks of ≤ 55 cm

Power 1 W

For tanks of ≤ 70 cm

Power 0.5 W

For tanks of ≤ 100 cm

For tanks of ≤ 130 cm

For tanks of 20–25 cm

For tanks of 30–35 cm

For tanks of 45–55 cm