Sponge filters are one of the most popular filters used in fish stores, fish rooms, and breeding tanks because they’re so reliable and easy to use. But beginners often have many questions on how they work, how to set one up, and how to keep them clean. Check out our step-by-step instructions to help you get started with your first sponge filter.

One of the most common questions we get is, “Does my aquarium need a heater?” Most freshwater pet fish are cold-blooded animals that prefer 78-80°F water temperatures to help regulate their body temperature. So, if you usually keep your home cooler than that, then the answer is yes.