Aquarium air filter

I made an aquarium air powered filter for my small shrimp aquarium. It is powered by air pump and use cut filter foam and sand at base. You can glue bubbler on bottom and rotate it to you liking. It should fit 5mm aquarium silicone hose and connect to bubbler through one of the holes on top, rest of holes are supposed to be plugged by top hole covers. It is held by suction cups by 2 holders 5mm in diameter. I also made pot for some plants. My aquarium is 2mm thick and is round at corners. Filter dimensions are 35mm x 35mm x 80mm height + 50mm pipe. You have to cut foam for silicone hose and main pipe.