I have 11 tanks and use a sponge filter in all of them. Easy to use. Best for beneficial bacteria.
I use these sponge filters on all 7 of my tanks, I even use one in my Pea Puffer tank with multiple fish. I would recommend them to anyone who considers buying one.
Great price. Super fast delivery!
These sponge filters simply do a very good job at keeping water clean and are inexpensive. I highly recommend them in currently use at least one in each one of my tanks.
Came two days early, works great, will be buying more products.