I have a 265 gallon tank that is 3 ft tall. On some bad advice when setting this tank up I used crushed coral instead of sand. It looks great but the problem is that uneaten food and poo gets trapped in it. I have a sump rated for up to a 300 gallon with a mag 24 as a return pump another 700 ghp pump to run my UV sterilizer a 36watt turbo twist. I have 2 korilla 1400 gph for more circulation but I am still getting a pile up of fish waste and uneaten food in the crushed coral bed. I have 8 syno cats but they are young and hide alot. So a buddy of mine who is into Koi and houses them in an aquarium in the winter suggested that I use a Sludge reducer. He says he uses it in both the aquarium and his pond and has great success with it. Basically it adds beneficial enzyme-producing bacteria to break down organic debris. It says it is safe for fish and plants. I have done some research and they have it for both fresh and saltwater. What do you think should I give it a try?