What Critters can I put in my Refugium?

[benihuma]

I have a 15 gallon refugium with live rock, live sand, caulerpa, 24/7 lights. I already put a spider crab in, so what else can I put in there? Snails? Hermits? Other crabs? Small fish? Starfish? Urchins? Shrimp? Basically I want to put stuff in there so it also is nice to look at, that won't interfere with the caulerpa breaking down the nitrates. Thanks.
Ben

 

[benihuma]

Here's a pic of it for reference.

 

[benihuma]

anyone???

 

[goldrush]

Certainly no shrimp,crabs or anything else that will eat pods or macro algae that you are trying to cultivate.

 

[benihuma]

i'm not sure the copepods are a concern of mine, since my tank is aggressive, but i certainly don't want anything eating my caulerpa.
ben