I have a betta in a 5 gallon tank with an internal power filter (Tetra Whisper 10i). Because the filter's flow is too strong I've partially submerged it so the lip where the water comes out is slightly under the water line, which makes the current much gentler.
Today my Betta learned that he can jump onto that lip! He usually sits on top of the filter, with his head and one side of his body completely in the air for about 30 seconds and not moving at all , before he jumps back into the water. I have a lid on the tank but it has a cutout where the filter is sitting, and he manages to squeeze through.
Of course this scares me half to death and he's done it three times already today. Is there something I can do to prevent this (short of getting a different filter) or should I not worry about it?
Today my Betta learned that he can jump onto that lip! He usually sits on top of the filter, with his head and one side of his body completely in the air for about 30 seconds and not moving at all , before he jumps back into the water. I have a lid on the tank but it has a cutout where the filter is sitting, and he manages to squeeze through.
Of course this scares me half to death and he's done it three times already today. Is there something I can do to prevent this (short of getting a different filter) or should I not worry about it?