Keeping my Refugium Cleaner?

[Eb0la11]

Hmmmm, so looks like Im getting mixed opinions on this.

My understanding of a DSB was to leave it be with low flow for its benefits, and therefore my refugium has a very slow water turnover rate in comparison to the DT.

I have 1-2 little crabs in there, just hitchhiker ones, but they arent cleaning much. I also have quite a few stomatellas that naturally have appeared in there along with tons of pods.

I dont want to disturb the pod growth with anything I introduce into the refugium because I have a mandarin that relies on them in the DT.

I do have chaeto growing in there and a few pieces of LR and also some rubble. The chaeto is held back with a baffle, so there is a somewhat open area for the rock and also some new mangrove pods Ive put in there about a month ago.

With all that said, I am not sure if a fish wouldnt do the best job cleaning it, but at the same time itd disturb the DSB quite a bit. Would snails do the job? Maybe I should put another crab or two in there? Blue Leg hermits?