Brandon K.A
Aquarium Advice Freak
I have a 5 gallon tank that has a Aqua Tech filter (takes cartridge 1) and I have a Beta and 3 Tetras (Tetras have that zebra colored tail and red on their heads) and the Beta seems fine, other than looking around at the side of the tank every so often, but the tetras, all 3 actually, are being pushed to the left side of the tank, and my filter is on the right. I turned off the filter and then they swim freely and fine, but with the filter on, they are being pushed back, and they are struggling to go to the right of the tank. Is this current too strong?? Should I leave the filter off?? I hate to see them struggle.