Decorator crab, arrow crab, and cowries

[Turkey head]

I have a compatibility question. I have a decorator crab and an arrow crab in a non reef tank - no corals, just live rock. It’s been set up for 5+ years so there’s plenty of crap for them to eat and I will target feed them some too. I want crabs and urchins in it as the primary inhabitants and I don’t really care how they move rocks around or wreak havoc. That’s what this tank is for. I forgot that I have two money cowries in it that I would prefer that they don’t kill. Which option is less risky, keep the cowries with the crabs or move them to a tank that has a flame hawkfish. I know neither is a safe bet but what is done is done. What would you do?

 

[xxkenny90xx]

Id keep them all together and be ready for the carnage! I also have an invert tank full of killers!

 

[Turkey head]

Invert tanks are so cool. I’m finally getting some of the things I’ve always wanted but couldn’t. Now that I have a second tank for corals I can!

 

[xxkenny90xx]

Invert tanks are so cool. I’m finally getting some of the things I’ve always wanted but couldn’t. Now that I have a second tank for corals I can!

Pictures!

 

[Turkey head]

Sorry, how rude of me.

such camouflage!