Originally Posted by swhitt
My newest Betta Gaeta has been swimming into the bottle part of the baffled filter. I'm worried that the bottle will ultimately end up tearing his fins up, but I need the baffle because the water flow is too strong for him. I am not entirely sure what I should do. He has a homemade leaf hammock to rest on and he was using it until last night when he discovered the bottle.
This is posted on page 4 or this thread, but I will re-post it here to make sure you can find it.
Another way to baffle
is to take a piece of aquarium sponge/foam and rubber band it to the filter
where the water comes back into the tank.
Adjustable - pull the sponge/foam up for more flow or down for less flow - no sharp edges and another place for the good bacteria to grow.
I am attaching a picture of one of my betta tanks to show you what I mean. When the hood is closed, you don't really see the sponge.