Crab/Invert Compatibility

[Squizzler]

I have a 30 gallon macroalgae tank, with the following:

Spider Decorator Crab
Small, 1 armed Arrow Crab
5 nassarius snails
13 blue leg hermits
1 juvi pink skunk clown

I'm wanting to add another oddball invert or 2.
Thinking a pistol shrimp/gobie combo or just another decorator crab if they'd not fight each other.
The reef & squat lobsters are intriguing, but they look like they're killers. Suggestions?

 

[eartaker]

Add a Cucumber... They are cool, they run around and eat your sand and the poop it back out clean... well as clean as a sea cucumbers poop could be I guess lol.

 

[senji]

my tiger cuc is awesome when u see him awesome sand bed cleaner.

 

[Squizzler]

I got a tank full of #3 CC is that too coarse for cucumbers? Nassarius Snails do fine, but it's not the finest stuff.

What's the fastest moving cucumbers that be ok in about 3" of sand(I can add more too)?

 

[wes]

I wonder if sexy shrimp would do OK in that tank.

 

[wes]

Or pompom crabs.

 

[wes]

I'd be worried about the arrow crab eating the sexy shrimp though.

 

[gREEF Stricken]

so far my two pompom crabs are hangin tuff with ALOT of other inverts.

GS

I'd be worried about the arrow crab eating the sexy shrimp though.