Alright, so it has been determined that the "whisperer" filter I am using is still waay too strong and pushing around one of my bettas.
So, I've done a bit of research, and it seems like I should get a sponge filter.
I am so confused. What is the setup for a sponge filter? What is this about an air pump?? All I want is something that I can stick in the aquarium and BOOM its being filtered!
Sponge filters sound so complicated. Are they? Do they need plugged in?
Right now, my set up is a 6 gallon, divider and two bettas. There are holes in the divider. Should I get one sponge filter or two? What brand is the best?
...or should I not get a sponge filter?