Wonderfactory 75W Aquarium Heater, 5 Temperature Modes for 5-15 Gallon Betta Fish Tank Heater, 78°F Mini Submersible 5 Buttons Temperature Constant Easily Setting, Freshwater & Saltwater Tanks

Tropical fish need warm waters to live since purchasing this heater I’ve not lost anymore fish and they seem to be more active.

I use this in the 5 gallon smart tank aquarium from wonder factory, fits great and keep it around 77-78 degrees consistently.

Bought to use with the wonder factory tank. Works great so far, and easy to operate. Has some trouble staying stuck to side of tank with provided suction cups.

This heater is for the Wonder tank smart tank . It has various fixed temperature settings..

Arrived safely, all in one piece. I use this in an 8 gallon shrimp tank, it keeps a consistent temperature and seems great so far!

Easy to yse

It was working great for the first month- fish loved it. The entire thing stopped working properly and I found it was literally burning hot about a week ago (a week after return policy ended) — when I realized my fish started acting funny and never went by it. I decided to clean the tank and brought the thing out. It burned my fingers holding it. It was on 78 Degrees still so it had broken. Made my poor fish sick.

Everything was going great until I took out the heater for a quick water change, grabbed the heating element 10 min later and it was at scalding temperatures and left blisters. There should be failsafe switches in this device….