Yes... I really am the offender here. I've been putting them back in the tank after eating not washing them at all... basically covered with worm and fish scent. I'm sorry little scrub...

It was a smaller scrub... probably the smallest... but the offender doesn't look like the LARGEST scrub... but probably on the larger side.

I'm going to think it's at least a positive sign that my little offender is VERY active in the prison bathhouse. I will not try to feed him/her until tomorrow. I'm willing to bet it happened this morning and not last night.