Q: Anon wrote, With the colder weather coming I’m noticing my aquarium temperature is fluctuating a lot and it gets pretty cold at night. What kind of heater do you recommend for a 3 gallon tank? A: Ah yes, with Autumn comes cooler weather and fluctuating aquarium temperatures that can lead to stress or illness. I just installed my aquarium heaters in all my tanks, which I … [Read more...] about Heating 2 – 6 Gallon Aquariums