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Aquarium Co-Op Heater

Regular price: $41.00
Sale price: $41.00
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1-year, hassle-free Aquarium Co-Op warranty
Built-in heater guard
Extra-long, 11.8-foot cord

The Aquarium Co-Op heater comes in two sizes — 50 watt and 100 watt. It is reliable, accurate, and thoughtfully designed to avoid some of the problems we encounter with many other heater brands on the market. If you do run into a problem, Aquarium Co-Op provides a 1-year warranty on this heater.

This compact heater is easy to position within the aquarium and has a built-in heater guard to protect the unit from damage. You can quickly adjust the temperature without getting your hands wet, since the adjustable temperature controller is located in the middle of the power cord and sits outside the aquarium. Plus, the cord itself is extra long and extends 11.8 feet, so reaching the outlet is much easier compared to many other heaters. (The cord length between the heater and controller is 4 feet.)

Note: When you first plug in the heater, a yellow indicator light will briefly turn on and then turn off again. The yellow light will turn on again once the unit has run for 17,520 hours, which is 2 years of being plugged in full time. At this point, the heater will still continue to work, but the yellow light reminds you that it has reached the end of its expected life and it may be time to start thinking about replacing the unit to ensure the highest performance. The red indicator light turns on whenever the heater is actively heating the water, and the temperature display is always on to show the current water temperature.

50w heater

Works great!!

Temperature off by over 3-4 degrees

I love Aquarium Co-op. I've never been dissatisfied with any of their products in the past until now. I recently purchased five of the Aquarium Co-op 100w heaters. Each of them runs three or four degrees lower than the set temp.

I used each heater in a 10 gallon QT tank. I set each heater at 80 degrees. I used a heat gun, digital thermometer with probe, and a cooking thermometer to verify the temp of the tank. Those tools showed that each tank measured at 76, 76, 75, 76, 75 degrees (+/- 0.5) not the 80 degrees I set the heaters to.

I increased the set temperature of each Aquarium Co-op heater to 85 degrees. My temp tools showed the temps to be at 82, 81, 82, 81, 81 degrees (+/- 0.5), respectively.

The heaters heat quickly, but they aren't anywhere close to heating to the set temperature, nor are they consistent in how far off they are each time. I would definitely use an additional heat controller as a back-up or buy a cheaper heater and use that on an independent temperature controller, like an Inkbird.

I definitely wouldn't trust these heaters to heat to the temps you set them to. There is a wide, inconsistent margin of error here. I needed heaters that would perform well and consistently, especially with the type of fish I'm keeping, so I'm especially bummed. I REALLY wanted these to be my go-to heaters for smaller tanks.

Aquarium Co-Op Heater

100 watt heater

Absolutely love the ease of use and accuracy of these heaters. No more hassle trying to make temperature adjustments. Bonus feature is the built in easy to read thermometer.
My only complaint is that it doesn't come in a 200 watt model.

Couldn't be better.

I have been using the 100 watt heater for a month now. The temperature is always consistent, the reading is easy to see but doesn't affect the appearance of the aquarium and the temperature controller on the cord outside the tank is the best thing ever. One thing I didn't see in the features of the heater is that it comes with four additional suction cups. What a great bonus! The suction cups always seem to deteriorate before the heater needs replacing. Also shipping was fast and inexpensive.

Aquarium Co-Op Heater

Customer Reviews