In my 5 gallon betta tank I use a simple air pump and internal box filter filled with Aquaclear Sponges. I then grow java moss all over it so it is hidden from view.
I used to have a 1 gallon betta tank which I bought a small internal filter from Walmart for. it is a kit with an air pump and a suction cup internal filter with cartridges.
I used to have a 1 gallon betta tank which I bought a small internal filter from Walmart for. it is a kit with an air pump and a suction cup internal filter with cartridges.
