Yeah they poop clean sand pellets, very interesting, lol.
"When they was no meat we ate fowl, when there was no fowl we ate crawdad. And when there was no crawdad to be found, we ate sand."--Cellmate
"You ate what?"--H.I.
"We ate sand."--Cellmate
"You ate sand?"--H.I.
"That's right."--Cellmate
Actually, Nassarius don't eat detritus at all. They'll just move it around. Their primary targets are leftover food bits and carrion. If you want a snail that sifts the sand AND eats detritus (and algae), shoot for cerithid snails, like Ceriths, etc.
"When they was no meat we ate fowl, when there was no fowl we ate crawdad. And when there was no crawdad to be found, we ate sand."--Cellmate
"You ate what?"--H.I.
"We ate sand."--Cellmate
"You ate sand?"--H.I.
"That's right."--Cellmate