The Bubble Magus QQ2 is a compact internal protein skimmer that can be used as an internal drop-in skimmer with a minimum water level requirement of 4 "(10 cm). Plastic solidly molded ... Bubble Magus BM QQ2 The Bubble Magus QQ2 is a compact internal protein skimmer that can be used as an internal drop-in skimmer with a minimum water level requirement of 4 "(10 cm). Plastic solid molded housing with built-in air damper and bubble trap. Powered by an energy efficient SP600 needle wheel pump that only delivers 8.5w used. Great for (portable) frag tanks, quarantine tank or AIO aquariums to export dissolved organics in the water column. Recommended for aquariums up to approx. 100 liters. Specifications BM QQ2 Model: BM-QQ2 Pump: ROCK SP600 Power: 220V, 8.5 W. Dimensions: 100 × 75 × 305mm (4.5 "x2.95" x 12.08 ") Capacity: 100L. Benefits BM QQ2 8.5w energy efficient needle wheel pump 4 "(10cm) water level required Built-in bubble stopper and air damper Robust injection molded plastic housing Drop-in design for frag or AIO tank Very good internal skimmer that is better in quality and performs better than a Tunze 9001/9004 Fits most AIO / NANO aquariums such as WaterBox Cube 10, WaterBox Cube 20, WaterBox Peninsula 15 and WaterBox Peninsula 25