What is an invert you would never get again?

[ReefED!]

Cool topic! I've had lots of different inverts over the years and there are several I probably would never get again, or would only keep under specific circumstances.

Peppermint shrimp and cleaner shrimp are at the top of the list. I know they're supposed to be reef safe, but I've caught both eating coral before, particularly LPS. I'm still considering keeping a cleaner in my 10 gallon softie tank again, but that's just because I love their look and I'm comfortable with one eating anything in that tank. :grinning-squinting-face:

Emerald crabs and sally lightfoot crabs as I have caught both eating corals as well, so probably won't be getting either again. The SLF crab was a bit aggressive towards tankmates as well.

I love pistol shrimp, but I'd be hesitant to put one in my main display tank again as they move coral/frags into their dens. Their popping from the "pistol" is actually surprisingly loud too.

Urchins are great algae eaters but are total reef tank bulldozers. They will pick up any and everything they can and are surprisingly strong.

I don't think fromia starfish belong in captivity. I bought one from my LFS without doing much research. (I know, I know. My mistake.) After learning more about it, I did my very best to cater to its needs, but it didn't make it past 2 years. Apparently that's better longevity than most in captivity. They just seem to eventually wither away due to lack of nutrition, which is a bit heartbreaking to be honest.

Randal/Candy Cane pistol shrimp don't do any of those bad things

I don't like the tigers because they get too big IMO.

 

[Crabs+Shrimps-69]

Some types grow very large and may steal food from corals such as LPS and Anemones. There has been documentation of large Orange, Green and Banded eating sleeping fish.

Where did you read the documentation of orange and banded brittle/serpents eating fish?
I thought it was only the green ones, but maybe if they are going hungry they will eat it?