ข้อเท็จจริงสำคัญ

• Sized by output in L/min or L/hour — match to reservoir volume (aim for full turnover every 30–60 min)
• Use air stones (diffusers) to break air into fine bubbles — finer bubbles = greater surface area = more DO transfer
• Multiple air stones improve coverage in large reservoirs
• Air pump failure is a leading cause of acute root rot — always keep a spare
• Elevate the pump above the reservoir water line to prevent back-siphon if power is cut
• Noise can be reduced with rubber feet or foam mounting pads