I made this net today, check it out. The purple part goes down to the floor of the tank. I am new to this site so I will describe my tank to you. I have the soap dish with a screen for them to climb up to it. I have the salt water dish under the soap dish and the fresh water dish next to the screen. The purple play sand is at 3 different levels, the top level has a food shell and all the shells that they can change into with a plastic plant. The middle level has 2 food shells and the bottom level has the cocohut and all the described above things about the water and stuff and another food shell. I have different food shells for all kinds of foods I offer when they are not molting which they are now. Ok now you can view the picture of my net I made today. I may try to make another one so it looks better but this was my first try so I figured it was pretty good.