Freshwater

For tanks of < 250 l

Difficulty: easy

For tanks of 90–100 cm

For tanks of > 250 l

Difficulty: easy

Difficulty: medium

For tanks of 45 cm

Difficulty: medium

For tanks of 60 cm

Fits: CO2Art Pro-Elite Series V2

Difficulty: easy

For tanks of ≤ 25 cm

For tanks of 5–5000 l

Difficulty: easy

For tanks of ≤ 36 cm

Difficulty: easy

For tanks of ≤ 55 cm

Difficulty: easy

For tanks of ≤ 70 cm

Difficulty: advanced

For tanks of ≤ 100 cm