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Betta slim heater helps guarantee your fish a healthy life by promoting the ideal water temperature. Specially designed with the innovative positive thermal coefficient element to heat the temperature of your bowl, aquarium or terrarium an average of 5 to 10-degree warmer than room temperature.
Size: 7.5 Watt, Round, up to 5 gal
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Works very well in our betta tank which is about a gallon. Have been using it for about 6 months.Published 9 hours ago by Kalana
definitely works...heats up with no way to regulate temperature and killed my fish because it got too hot. not recommended for 1 gal tank or smaller.Published 2 days ago by Amazon Customer
This product arrived opened and was shipped with live rock . The package was soaked with the water from the live rock. Read morePublished 6 days ago by Celine lover
The heater warmed up the water too much and killed my betaPublished 6 days ago by Olivia Richardson
Does not even heat up my littl aquarium my 1.2gallon that's why I give it a onePublished 7 days ago by sou somsavath
I wasn't sure if it was actually working and the temperature fluctuated. I didn't want to fry my fish so I didn't leave it in. Read morePublished 13 days ago by ZeeWrites
I almost cut the heater opening it. Other than that the heater works great. The Betta fish is more activity after putting the heater in his tank. Read morePublished 21 days ago by Becky Moore