What type of filteration system do guppies need in a 5 gallon aquarium?

A sponge filter is a great choice for a 5-gallon aquarium with guppies. It is a simple and effective filter that requires minimal maintenance. Sponge filters are also very gentle, making them ideal for guppies, which are small and delicate fish.

To set up a sponge filter, simply attach it to an air pump and place it in the aquarium. The air pump will draw water through the sponge, trapping debris and waste. The sponge will also provide a surface for beneficial bacteria to grow, which will help to break down organic waste.

Sponge filters are very easy to maintain. Simply remove the sponge from the filter and rinse it out in aquarium water every few weeks. You may also need to replace the sponge every few months.

Sponge filters are a great choice for a 5-gallon aquarium with guppies. They are simple, effective, and gentle, making them ideal for these small and delicate fish.