Fiddler crabs are brackish water crabs, they are aggressive, but they are more of scavengers than being aggressive, which means they could eat anything they could be able to take down, including snails, shrimps, and other animals they could be able to take down and eat. Being able to eat anything means they could eat other things that are not meat or other animals too such as vegetables, plants, fruits, etc. Judging by their nature, you may want to know if they could kill fish.
Do Fiddler Crabs kill fish? Fiddler crabs could kill fish if they are kept together. They do this by pinching the fish with their claws, and the fish might die as a result of the pain and diseases that might come from the pinch.
Although they could kill or hurt fish, but it’s not very common for them to kill a big or adult fish.
Fiddler crabs could easily hurt fish when they are still small, but when they are mature, they couldn’t easily be hurt again by these creatures.
Fish have far more advantages than fiddler crabs, be it in speed, size, and even aggression.
It’s very rare for them to hurt big fish, even to talk of killing them.
They could only hurt them when they sleep, then the crabs will now go to them and pinch them with their claws.
As a result of the wound that might emanate from the pinch, the fish might become infected with diseases as time goes on and might die as a result of it.
This is the only way Fiddler crabs could kill an adult fish, but if you are thinking of them literally killing them directly, then you are wrong because they can’t do such a thing unless the fish are still tiny.
Unlike some other crabs, Fiddler crabs have smaller claws, and this limits their level of aggression and the impact their pinch could have on animals.
So, with such small claws, they will only end up inflicting pain and wounds on big animals like fish, and not killing them directly.
So Fiddler crabs do kill fish, but they do it indirectly by hurting them, which they might die from, or directly by know killing tiny fish.
Do Fish Kill Fiddler Crabs?
Although fiddler crabs could kill fish, either directly or indirectly, but fish could kill them too.
One of the most dangerous predators of crabs is fish.
There are many fish that doesn’t tolerate any crab in their tanks, be it Fiddler crab, hermit crabs, etc, and will kill and eat them if they could find them.
Many fish do kill and eat Fiddler crabs, so, the only way Fiddler crabs could hurt them is by sneaking out in the night when they are fast asleep and pinching them with their claws or by killing the small fish they could be able to get.
Normally if Fiddler crabs and fish, especially the big and dangerous fish happen to be in a tank, the crabs will always be hiding for the fear of being eaten by the fish.
So, fish do kill and even eat fiddler crabs, especially their young ones that could easily fit in the fish’s mouth.
Will Fiddler Crabs Attack Fish?
Fiddler crabs are not very aggressive, but they are scavengers who could eat anything. So, while keeping them with fish, will they attack them?
Will Fiddler crabs attack fish? Yes, Fiddler crabs will attack fish, but only the small and vulnerable fish.
Fish is one of their predictors, so they don’t attack them unless the fish involved is very tiny or sleeping or very sick.
They won’t dare come out openly to attack fish that are both bigger, faster, and sometimes more aggressive than them, or they will risk being eaten.
So they normally stay on their islands or hide inside their caves till the fish swim away.
Do Fiddler Crabs Eat Fish?
Yes, Fiddler crabs being scavengers will eat anything they could be able to fit in their mouth, including fish.
If you keep them with fish, even if they live peacefully with the adult fish, when the fish have babies, it is very possible. that they will eat any of the babies that cross their way.
So Fiddler crabs do eat fish, but they could only eat those that are tiny of the dead ones.
Do Fiddler Crabs Eat Dead Fish?
Like I mentioned above, Fiddler crabs are scavengers and do eat anything they see and could be able to eat.
Do fiddler crabs eat dead fish? Yes, being scavengers, they do eat fish and any other animals that might die In their aquarium and even in the wild.
Although they feed on plants, vegetables, fruits, and live animals, they also feed on dead and even rotten animals they could see, especially in the wild.
So, Fiddler crabs could eat dead fish.