Review on 🐠 Orlushy Submersible Aquarium Heater: 30W Fish Tank Heater for Marine Saltwater and Freshwater with Adjustable Thermostat and Sticker Thermometer by Rachael Young

I bought this to replace my last heater which was in a Fritz. I tested it in a large bucket of water first because I wanted to make sure it didn't overheat and explode like other reviewers have experienced. I left it for four days and it's still intact. The coils have gone dark and there is a slight "burnt" discoloration on the inside of the glass that makes me nervous. The temperature controller was pretty inaccurate so I would suggest setting the temperature based on your thermometer and not the heater controller. The little sticker thermometer is a nice giveaway and it fits my digital thermometer so it seems to work well. It's worth having on hand for emergencies.