Article: Use the spines from two report covers to make your frame. Start by pulling the sliding plastic spines off the report covers. Slide one spine on each long side of the mesh or plastic canvas to make the bars of the frame. Cut to size if needed.  Consider making the frame sturdier by adding a third spine on the bottom of the canvas. Look for report covers in an office supply store. Use snap frames for poster boards instead of report cover spines for a more sturdy frame. Don’t bother with a frame for egg crates. Tuck the sides of the frame or the egg crate under the lip of the tank. Aim for a very snug fit. You can further secure the divider with suction cups. Attach suction cups to the frame with fishing line. Use plastic zip ties to attach them to the egg crate.  You might need to cut the sides of the frame down for them to fit. Add an extra piece of plastic canvas on the outside of the frame if there is a gap between the suction cups and the sides of the tank. Do this to prevent fish from swimming through the gaps. Glue the thinnest sides of the egg crates to the tank with aquarium-safe pure silicon. Use a marker to draw a line on the outside of the tank to guide where the silicone needs to go. Then add the silicone and slide in the divider. Remove the marker with rubbing alcohol or a similar cleaning agent.  Look for this silicone in pet stores, craft shops, online, or in building supply stores. Do this in a dry tank for best results.
What is a summary of what this article is about?
Make a frame for a plastic canvas divider. Secure the divider in the tank. Adhere egg crates to the tank with silicone.