Carefree Fish

Carefree Fish 200 300 500 800W Aquarium PTC Ceramic Heater Dual Independent Chips Dual Overheat Protection Dual Water

4.5(72)
$49.99$64.99

1717+ bought in the past month

About this item

  • Dual Independent Chips:Each chip operates independently. When one of them is damaged, the other chip can still keep the heater functioning properly.
  • PID Control:The temperature control is precise, error ±0.5℉. Variable frequency heating. When the water temperature approaches the set temperature, the power of the heating element will gradually decrease. Once the set temperature is reached, the heating element will operate at a low power of 50W to save electricity.
  • Dual Low Water Cutoff: When the water level is too low, the heater will automatically stop working and display "Er". The dual water level sensor design ensures that the heating element will not be damaged due to low water levels.
  • Dual Overheating Protection:Two temperature controllers are installed inside. When the temperature is too high, the heater will stop working to prevent the situation of cooking fish.
  • PTC Ceramic Heater: Compared with nickel-chromium wire heater(Quartz and Titanium heaters) it has a faster heating speed and more stable heating performance. Under the same conditions, the temperature control of PTC ceramic heating rods can be more accurate, and it can avoid the heating rod from malfunctioning due to sudden temperature increase.500W,110~120V/60Hz.68~93.2℉,for 30~120Gallon fish tank.
$49.99
Was $64.99Save $15.00

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Technical specifications
item_weight1.39 pounds
manufacturerCarefree Fish
item_model_numberSZQSJRB5
national_stock_number70121801
date_first_availableNovember 10, 2023
item_package_dimensions_l_x_w_x_h9.96 x 4.8 x 3.23 inches
item_dimensions_lxwxh9.1 x 3 x 1.2 inches
brand_nameCarefree Fish
warranty_description1 year
colorBlack
size300W(20~50Gal)
age_range_descriptionAdult
is_discontinued_by_manufacturerNo
product_dimensions9.1 x 3 x 1.2 inches; 1.39 Pounds
best_sellers_rank#52,952 in Pet Supplies ( See Top 100 in Pet Supplies ) #124 in Aquarium Heaters

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Customer reviews

4.572 ratings
  1. 5★75%
  2. 4★13%
  3. 3★0%
  4. 2★0%
  5. 1★13%

Customers say

Customers appreciate the aquarium heater's temperature control features, with one mentioning that the temperature is clearly visible through the glass.

★★★★★

Best heater I ever had

Steven W Galambvari—September 16, 2025✓ Verified purchase

I have had aquariums of all sizes and shapes for 30 years. This heater is the best one I ever used. Easy to setup and easy to adjust from outside the tank. The display is easy to read. It shows the temperature it is set for and the actual temperature in the tank. In the two weeks I've had it, there has been no variation in the temperature thst I set it for. The unit is very well made and sturdy. I highly recommend it and will make it my go to heater in all my aquariums.. Read more

★★★★★

My fav 😍

Aqualuvv—March 9, 2026✓ Verified purchase

I have this heater in all my tanks and had them for a year now! I’m completely obsessed with these! The only down fall is that they are bulky but they are so reliable! You can change the temp higher or lower. These are amazing 🫶 Read more

Review image 1
★★★★★

Great heater!

BriAnna—November 9, 2025✓ Verified purchase

Such a great heater! We have owned three of them ,and they last about 2 years and keep a constant temperature. Read more

★★★★★

Very nice

JodiB—January 20, 2026✓ Verified purchase

Love this so much I bought a second one for my other tank and will continue for every tank I get. I love everything about this, ceramic, backup, the cover-my fish can't get through it- Read more

★★★★☆

So far so good

Alisha pollard—November 24, 2023✓ Verified purchase

Please excuse the bubbles thats from a filter iv gotten but as for the heater I see no issues with it so far its been a month Read more

Review image 1
★★★★★

Great heater💚💙💛

Mit The kit—December 6, 2025✓ Verified purchase

Absolutely love this. Great item for 9 gal angelfish tank. Read more

★★★★★

Affordable and adjustable

Maureen A. Ciliberto—September 18, 2025✓ Verified purchase

This light works really well! It gives a beautiful glow to the tank and is super easy to install. It has adjustable arms on each side that will open to accommodate the length of your tank. I do wish the on/off switch was a bit higher on the cord so it was closer to the tank but that’s not necessarily a big deal. Read more

Review image 1
★☆☆☆☆

Garbage

Kenneth Shiflett—November 5, 2025✓ Verified purchase

Garbage ,didnt even last a year. Read more

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