Look at the bottom.How do you sex an emerald crab?
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Look at the bottom.How do you sex an emerald crab?
I've found that size has as much to do with behavior and appetite as sex. Young ones stick to algea. Large ones will take a chunk of shrimp from a nem. They can't catch a fish. Male or female.How can a CRAB corner a fish? A fish can just swim up and away... only a unhealthy sick fish would sit in a corner and let a crab kill it. A cleaner shrimp is no danger to a healthy fish. They will eat a dead/dying one though.
Also it sounds like you still have the lawnmower and clowns? A predator wouldn't only target new fish.
Disease however can kill new fish that are stressed. Are you also positive it is not your resident fish that are attacking? This usually happens in the early morning or evening or any time you are not watching. Fish behave differently when being watched.
That being said, I only put female emerald crabs in my tank. Males can be bit of bulldozers.
Not true. My comment on the other thread was ignored.I ran this post past passionate non disease prep advocates and they were speechless on alternate options, fallow and qt seems to be the it move. It’s the only set of actions we haven’t ruled out for the fix.