A power outage during a hot night or a busy travel week can leave a tank without oxygenation for hours, which is dangerous for fish and especially for shrimp and invertebrates. The Dymax Air Pump lineup — AP300, AP700, and the battery-backed AP1000 — keeps oxygen moving whether you need light-duty airflow or true outage protection.
Why Reliable Air Supply Matters
Air pumps drive surface agitation and gas exchange, and a gap in that oxygenation — whether from a pump failure or a power cut — can turn dangerous surprisingly fast, particularly in warmer water or heavily stocked tanks where dissolved oxygen is already under pressure.
Choosing an Air Pump
- AP300 — a quiet, energy-efficient pump sized for small tanks that don't need a powerful, high-output pump running constantly in the background.
- AP700 — more airflow for mid-size or multi-outlet setups, without the noise of an oversized unit.
- AC/DC AP1000 — automatically switches to battery backup during a power outage, keeping air moving for hours instead of leaving a tank without oxygenation.
Setup Tips
- Size to your total outlet count — running multiple airstones or sponge filters off one pump reduces output per outlet.
- Use a check valve on every line to prevent backflow if the pump ever loses pressure.
- Consider the AP1000 for anything you can't afford to lose power to — shrimp colonies, breeding setups, or heavily stocked tanks especially.
The Dymax Air Pump lineup is available at Marine Concept Supply — order online or pick up at our shop in Wheeling, IL. Shop AP300, AP700, or AC/DC AP1000, and browse more aquarium pumps.
