Hello everyone, I am new to this site but have been in the hobby for several years. I have a 90 gallon fish-only tank which consists of 1 unicorn tang, 1 blue regal tang, 1 lavender tang, 1 niger trigger (small) and 1 snowflake eel. The tank is aquascaped with about 60 lbs. of baserock and two large conch shells. The sand consists of aragalive sand and is currently being sifted by a 3" sand sifting star. I need to find a fish and/or invertebrate that will consume detritus. The fish has to be extremely bold when it comes to feeding so that it can compete with the current population. I clean the tank every 20 days but can't seem to keep the top layer of the sandbed as clean as I would like. The sand sifting star does a good job, but does not seem to work as quickly as needed. Any help or suggestions would be greatly appreciated. Thanks in advance. :shark: