Review on 🐠 Aquapapa Pack of 2 Bio Sponge Filter for Betta Fry Aquarium Fish Tank Up to 55 Gallons Each - Double Sponges by Sandi Alexander

This was my first experience with sponge filters. I never knew they existed. I wish I had. man they work. I love sponge filters and will never go back. Yes they work but you need to do your research and choose the right size. I bought two of these for a 30 gallon tank so this worked for me. They worked BUT I saw a lot of complaints about how ugly they were and I didn't think they were when I bought them but people were right. They are difficult to hide and take up a lot of space. Well if you are building a heavily planted tank these might work for you. But other than that, I recommend round ones that are weighted and sit on the bottom. I still use them but in my hospital and quarantine tanks because they really are that ugly. :(.