An old thread but does anyone have experience with male RCC with female fiddlers? Are they equally aggressive?
My male fiddler just died and while I never saw him once engage the male RCC, after about a month the fiddler lost his large claw and lost his title as king, and each subsequent day I'd come home to find him having 1 less leg until his inevitable doom. I thought it was poor water conditions..
How are male RCC with female RCC?
From what everyone seems to be saying, and from what I've seen and heard personally, it seems like crabs will vary in their aggressiveness based on their environment, their health, their tankmates, etc. Also, naturally, some crabs are just going to be more aggressive than others, that's just the way it is, same with humans. But something else to consider with fiddlers and RCC, size differences will play a big part in who's boss, and if one is bigger than the other by enough, then it's almost inevitable it will eat the smaller one, since crabs are opportunistic eaters. It's sorta like the rule with freshwater shrimp and fish: if the fish can fit the shrimp in its mouth, then it will.
I am curious about the male Red Claw Crab and female Fiddler combination though. As for just RCC, I know that if you keep one male RCC, he will get along fine with up to three or four females, so long as the tank is big enough, and there are enough above-water areas, and below-water hiding places.