arrow crab yes or no????

It all depends what you're planning on adding to your tank later, because those arrow crabs are predators and will kill other inverts in the tank. Imo
 
i got the cleaner shrimp.......im thinking of doing corals... im have to change some of my fish...but i like how corals look better....are they hard to keep
 
Some corals are not hard to keep.But all require that you understand the basics of how the tank works,maintance,and husdandry.
 
The book titled The Conscience Marine Aquariest would be a good place to start.
Plus read through the articles at the top of page.
 
I also would stay away from arrows... are sally lightfoot crabs the same? I wanna get some more inverts but I already have an emerald crab...
 
Sally lightfoots and arrow crabs are different. But neither are fish safe. I used to have two sally lightfoots, and I watched them catch, kill and eat a sixline wrasse and two firefish right in front of me.
 
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