U-picks 300W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 150-350L for Saltwater and Freshwater

Easy to use ad set up, handy to have the digital display, the heater has been getting used for almost 1 year and only issue I have is the suction pads are not the greatest they come loose after so long but other than that the case is strong, easy to clean and keeps temperature at a good steady level I've not had to do anything with it except give it a clean down when needed. Set the desired temp and it'll keep it steady level.I've recommended this one to alot of fishkeepers and all are happy with the product.

My old heater was faulty and not working properly. My coral was not opening. So I ordered this heater and it came early the next day, which was great. Very good price, really easy to set up ,and temperature gauge was on the outside so really easy to monitor, completely digital and an audible alarm If any problems occur. Brilliant heater.

First impressions are it's good quality with good features and the temperature is accurate. It has overheat protection which is important if it goes faulty, this is mentioned in the manual but not in the advert. The manual is excellent detail. Having the temperature controls outside of the aquarium is a plus. The heater is slow heating up the aquarium but heats up in steps, an intended feature. The only downside is the two glass suckers are poor quality and break easily on connecting to the mounting gap. Be real careful attaching the suckers use a pen or something to slide them into place.My TMC V2 heater went faulty after 13 months so I have replaced it with this heater.3 week update: The heaters are working fine but the heaters won't heat past 24C. There should be some heat redundancy due to using 2 heaters in a 200l aquarium but there isn't. 5W of heat per gallon is ample. Due to the design that the heaters take stages to heat up. The waters cooling down again.13A fuse fitted when it should be 3A

Have been using for a while now. Bought as a replacement as my heater failed and I lost fish. This is brilliant being able to see the temperature immediately without having to find my glasses each time to look at the in tank thermometer is a blessing. It seems a decent heater. Well built and doing its job nicely

Great product for the price had to buy this as an extra heater for my tropical aquarium during the winter as the one I had wasn't strong enough ,has a warning beeper when temp is to low and a display to show temp

Not impressed at all, installed in aquarium, temp immediately displayed 22° even though the actual temp was 14° .Not reliable at all

This is such a good idea to have the temperature readings and controls outside the tank! Very impressed with it so far👍🏻

Bought for a new tank, stopped reading correct temperature and gives warning sound for water too cold. However the temperature of the heater is set to 25c and this is confirmed by another digital thermometer. Such a shame as now I need another one and hoping the seller can send out a new oneHave bought this one before and works fine after 1 year in another tank. So maybe I just got a faulty one or got lucky last time