Fish tank floating feeding frame

You will need 2 drinking straws of the same size to make the simplest floating feeding frame for your fishing tank. I use drinking straws with flexible neck in this example. Pinch and fold end of one drinking straw. Force this end of the straw inside of the second straw. Pinch and fold the other end of the second drinking straw. Force this end of the second straw inside of the first straw. Place the frame on the table to check if all four corners are in the horizontal plane. Adjust corners if necessary. Congratulations, you have made the frame!

There are a lot of floating plants in my fish tank. I blow the plants away to make some clear space for the feeder. Place the frame in the fishing tank. 
Have fun and happy fish feeding :)