You've spotted something swimming around in your shrimp tank and you're pretty sure it's a copepod. Great. Just what you needed. Now you're wondering how to get rid of them before they take over your tank and start eating all your shrimp.
Don't worry, getting rid of copepods is relatively easy and there are a few different methods you can use, depending on the severity of the infestation.
If you only have a few copepods, the best thing to do is to manually remove them with a net. This is time-consuming but it's the most effective way to get rid of them without harming your shrimp or other inhabitants of the tank.
If you have a more serious infestation, you can use chemicals like formalin or dichlorvos to kill the copepods. Be careful when using these chemicals though, as they can also be harmful to your shrimp if used incorrectly. It's always best to follow the instructions on the product label carefully.
Finally, if nothing else seems to be working, you can try introducing predators into your tank that will eat the copepods for you. Some good options include certain types of fish (like guppies), snails, and even some species of spiders!