Hey! I recently lost my first Betta because he got sucked in to the filter. He got out but died a couple days later. I decided to get another Betta and today I found him sucked up against the part I've circled in the photo. I just put a white mesh bag over it for now but it's not nice to look at. What suggestions can you give me for something more permanent that blends in? Is there a sponge that will go over this shape filter? Thanks!!