AQUAEL's new Flow Heater is an inline heater that mounts on your outflow tubing rather than sitting inside the tank — rated for both freshwater (FW) and saltwater (SW) systems, and compatible with sump/wet-dry return lines or canister filters (not hang-on-back filters).
Key Features
Fully electronic control — no mechanical switches, with a digital temperature readout that doubles as a thermostat display
Built-in flow sensor: shuts the heater off automatically if water flow stops, preventing dry-fire damage
Available in 300W (up to 160 gallons) and 500W (up to 265 gallons)
Stays completely out of the display tank — more room to aquascape, and no exposed heater for aggressive cichlids or large fish to damage
Quick-disconnect fittings for 3/4" or 5/8" tubing (O-ring position determines which), making cleaning simple: disconnect, run a pipe cleaner through, reconnect
Mounting clips work either clipped to the glass or screwed into a cabinet interior
Doubling Up on Large Systems
On a large sump or wet-dry with a Y or T split return, you can mount one Flow Heater on each return nozzle to double your heating capacity across a bigger system.
Want to keep your heater out of your display and away from aggressive fish? Shop the AQUAEL Flow Heater in 300W and 500W at natureaquariums.com.
