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1. Unique design, sandwich construction which provides a good growth environment for Aerobic nitrifying bacteria and Anaerobic ammonia removal bacteria.
2. H-type diversion channel structure, can maximize oxygen surface area, can effectively avoid deadzone caused by overlap.
3. Removal ammonia, nitrite, nitrate and ammonia effectively, help to maintain the ecological balance in aquarium.
4. The octagonal shape will good for biological culture and high-density gas exchanging, effectively prevent acidification of water, make the ecological balance more stable.