300W Aquarium Tank Heater (16~32'C / AC 220~240V)

Pros: -Works -Has (though slightly akwardly placed behind paper) on/off LED -True high wattage, heats the aquarium like crazy -Long heating element (could also be considerd a con)

Cons: -Short lead -Not properly calibrated thermometer, hard to get right -Not really a con, but will need ample water flow in order to disperse the heat coming from it!

Other: Would buy again, cheaper then local and when you are setting up it's a chore, but once set up it works.

Pros: Cheap. Pretty good build. Works ok.

Cons: I have 2 of these in the total of 600L, i have them standing now on 27*C, but tank is only holding 22*C, temp.sensor could be better..

Other: Good buy, but if you have a big tank and need more heaters, buy an external temp sensor device to turn them on simultaneous, because the built in temp sensor is not good enough. Would also recommend having a temp.gauge in tank to determine temp, and just adjust heater after that.