A sand sifter that will survive in my fowlr

[Ticketyboo]

I have a Black Sand Sifting cucumber... what an amazing creature to watch... he has about 6 arms at the front and grabs pockets of sand and ingests it, and spits clean sand out the rear whilst taking in whatever nutrients it does... i have combined this was a sand sifting starfish and a massive 4 inch conch.... those all work well for me in my predator tank so it may work for you...