Hi everyone. I have a 20 gallon AIO cube that's about a month old. I have two juvenile clowns, 1 candy cane pistol (we sadly lost his Yasha goby pair the other day), and 1 nassarius. I have been working hard on not over feeding, but regardless I still have some excess food on my sand bed. What else would be a good member of a clean up crew that goes after leftover fish food on the sand and rock, specifically? I'm not opposed to a hermit, but are they that good at consuming excess? The pistol and nassarius co-exist just fine, but they mainly sleep during the day so I can't be sure how much they really consume. Would 20 gallons be too small for a tiger conch?
TIA!
TIA!