what is the the longest youve owned a crab?

[emmac350]

That is called cannibalism and it happens when the crabs have a severe nutritional deficiency - usually in both protein and calcium. If the crabs are kept for a year and are never given a good diet, chances are that a large malnourished crab who needs to molt will do anything it can to get the nutrients so that it might not die during the molt. Crabs also tend to get very irritable before molting, especially if they feel they won't have enough room to themselves during their molt, and will pick on their tankmates.