How do I catch this crab? And how to give it a new home after? Hello I'm new here, and this is my first thread! Slightly over a month ago, I set-up a 5 gallon tank (it was a present) and a week later, I spotted this little guy (gorilla crab? It has red eyes) A few weeks ago, I bought this coral, which I was told might be Pipe Organ coral? One fine morning, I woke up to see about 40% of the whole thing was BALD. And just beneath the rock, I saw the crab, munching away on some purple coral 'body'. So right now, my poor coral is cooped up in a container (but as you can see, it's doing fine now), and the hairy thing is still on the loose. And what I want to do is 1. Get the crab out of there, and 2. If possible, keep it in a separate tank I really don't wanna kill the fella I've read about the glass crab trap, but I'm not quite sure exactly how to set it up. The rock the crab usually hides in is circled in red, so... any suggestions? And let's say I DO manage to catch the crab, I was thinking of setting up a small little tank (with filter, live rock and etc.) for it. I know it's a little weird, but I think he's quite cute really. So what would be a good tank set-up for a little crab? That's about all, and just for the record, my tank is currently home to: 1 Yellowtail Damselfish 1 Pseudochromis 1 Cleaner Shrimp 1 Astrea Snail 1 red-and-white swirly snail (looks like Strawberry Sundae, would love it if anyone can ID it!) 4 tiny Mushroom corals 1 Pipe Organ coral (correct me if I'm wrong) 1 Black and white Brittle Star (very tiny, came with the mushrooms) And a few Majanos that came with the Pipe Organ. Everyone's help is much appreciated!