Hello all! I have a 10 year old red eared slider, he is in a 55 gallon aquarium (he's 5-6 inches long). Well, I recently bought an above-tank basking area, which will allow me to fill the tank with water almost completely to the top. The problem I'm now facing is this; the original screen lid will no longer fit on the tank, and I NEED a lid, because he will definitely climb out with the water being so close to the top. Can anyone give me tips on what to do? I was thinking about making a custom lid, but I'm not exactly sure how to go about doing this, or which materials I should use.