Just ordered two boxes. I plan on putting charcoal on the bottom , these in the middle and a bio foam filter on the top. The top will catch the bigger particles, extra food and debris etc. these will help clean the smaller particles and the charcoal will help clean the water clean and clear. That way I can remove the foam filter every couple days rinse to remove the food and then rinse these every week or so. What do you guys think? Thinking of buying something like this and just cutting to fit into my media holder. Trying to make something that will last longer and not require replacing filter floss every couple days, seems like a waste to me. Let me know your thoughts