Do I clean the refugium?

[naesco]

Originally Posted by ashley

no I don't have anything in there at the moment, just macroalgae

The purpose of the refugium is to provide food for your coral and small fish. pods, bacteria etc.

Snails are OK unless they are bumblebee snails (predators) but hermit crabs are predators.
The eggs and offspring of snails will provide food as well.