Recommend an awesome invert for my 21g shallow tank

[Partially Submerged]

I have a 20x20x12 tank with corals, some snails, and a porcelain anemone crab. What kinds of inverts could I add to this setup? I'd like something that is large enough to be seen (i.e. no tiny sexy shrimp or the like), but It's very important to me that whatever I add will not harm or harass the porcelain crab. If that's impossible, I'll just add a bunch more porcelains.

 

I would love a coral banded shrimp, but they score just too high on the jerk scale from all I hear.

[najluni15]

Pom Pom crabs?

[JavaJacketOC]

Conch, Sea Cucumber (Yellows are small but bright), Fuzzy Chiton from Reef Cleaners or a Pistol Shrimp/Goby combo.

[FlowerMama]

Need a rock flower anemone. Porcelain anemone crabs love them. It'll grow to 4" or so and you'll have beautiful pics w/ your crab on your nem.

[cromag27]

Bubble tip.

[cjm3fl]

Mmmm...

Fire shrimp?

Lettuce Slug?

One of the Tuxedo Urchins?

[Partially Submerged]

Thanks for the input, all! An anemone would be awesome, but unfortunately the tank is freshly set up (albeit with established rock, so I am not going to risk it. I might just go with two or three more porcelains and a goby/pistol shrimp pair.

[LebaneseDlight]

My fighting conch is one of my favorite things in my aquarium. It's like the elephant of snails. The thing has a trunk, and it's so gentle.

 

Here's a video of one (not mine):

[cromag27]

You could also add different color porcelains.

[Weasel Baron]

clams? maybe some Trapezia if you have a big enough sps

[magikarp]

Love conchs and hermit crabs. Both display lots of personality for inverts

[Ga912]

I have a 20x20x12 tank with corals, some snails, and a porcelain anemone crab. What kinds of inverts could I add to this setup? I'd like something that is large enough to be seen (i.e. no tiny sexy shrimp or the like), but It's very important to me that whatever I add will not harm or harass the porcelain crab. If that's impossible, I'll just add a bunch more porcelains.

 

I would love a coral banded shrimp, but they score just too high on the jerk scale from all I hear.

. Tiger pistol shrimp

[Matteo]

^{fire shrimp, urchin, pistol shrimp with goby friend}