Review on 🌡️ Aqueon Adjustable Preset Heater by Megan Rogers

Bought 6 last month: 3 x 200w and 3 x 50w. The 50 watts were for 10 gallon tanks, they advertise that they can heat tanks up to 20 gallons. The 50w barely kept the tank at 73 degrees let alone the 78 it should be at. The red LED came on for less than 1 minute and then went off like it never got hot. The 200W is supposed to heat 75 gallons, but I can't even get the 55 gallons I need it to heat to 70 degrees. It turns off by itself, the LED is on, it stays on for less than a minute, it turns off, I even put my hand in the tank to feel if it gets warm, gets warm, turns off. Basically you need to double each of them to get the desired 78 degrees in the tank. At that point, just buy a bigger, better heater for the same money or less. It was a big disappointment and a pain in the ass! Instructions for use useless! Wouldn't recommend to anyone who needs a constant temperature. It can even be dangerous to kill your fish as they vary wildly in temperature.