salt invertebrates

I posted this crab on Reddit and got multiple suggestions, there’s a little bit of an argument in the comments. What is this crab. He is at least 3 years old, though he was this same size when we got him. He lived with a mantis shrimp and some fish; also some soft coral but never did any...

Hi all my first post but I read here all the time. I recently got a Red Sea 625 XXL G2. I have currently: 1. 1 Clownfish 2. Cardinal Fish pair 3. 1 chromis 4. 1 Valentino Puffer 5. 1 Dwarf Angelfish 6. 1 Convict Tang 7. 2 smaller wrasses 8. 1 Cleaner shrimp 9. 1 snowflake eel (10-12 inches) 10...

Well, I've been "encouraged" to introduce myself. Marlin here from Seguin Tx. Been doing aquariums since 11 years old, that is saying a lot considering I'm a little older now. That means fishkeeping for about 50 yrs. Mostly fresh with a little dabbling in salt on occasions. Recently wife...