I am using Tetra Whisper Air Pump in my Discus aquarium, it is an almost silent air pump, and so powerful which you can keep it 24×7 running to provide your Discus with sufficient oxygen.
Tetra Whisper Air Pump is:
- Powerful: It is one of the most powerful lines of air pumps that adds dramatic bubble effects to customize your aquarium.
- Deepwater capabilities: It is designed for tanks with significant back pressure – pumps air down to 8 feet deep in depth.
- Versatile: One pump delivers air to all your powered accessories.
- Reliable: Never buy another pump or worry about oxygen in the water.
Check its offer price on Amazon.