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My fish population is growing rapidly, but how do I know if my fish population is balanced? | Ponds & Lakes Q&A

: My fish population is growing rapidly, but how do I know if my fish population is balanced?

Q: My fish population is growing rapidly, but how do I know if my fish population is balanced?

Dennis – Rock Island, IL

A: A balanced fish population in your pond is key for a healthy, thriving ecosystem. The best way to start figuring out your fish population is to know what you already have in your pond.

Start by sampling the population you already have by using a fish trap, or fishing out a sample population of fish and inspecting them for size and type.

Next, figure what might be needed to keep the population in check if something is out of balance. When sampling, if you notice you are only pulling out prey fish such as bluegill or perch, then your pond is either on the verge or already overpopulated with prey fish. To keep them in check, either fish out the prey fish or add more predators such as bass. Conversely, if you are only pulling out small bass, then your pond is in need of stocking prey fish.

If your pond is balanced, you should notice a population of fish relatively the same size, and the ideal ratio of about three prey fish to one predator fish.

When introducing the right balance, be sure there is a safe habitat for the fish, especially if you are introducing small fish with an already present population of larger fish. The Porcupine® Fish Attractor Spheres are perfect for this. Release feeder minnows at one end of the pond to attract larger fish and introduce new, small fish at the other end or near a habitat so they have a chance to hide in the pond. Feeder minnows should be stocked every season as they provide good stock food for larger fish, and they reproduce quickly to maintain a living food source.

Pond Talk: How often do you check your predator:prey ratio in your pond?

Provide Refuge And Attract Fish - Porcupine® Fish Attractors Spheres

I didn’t have fish in my pond before but they are there now. How did they get there? – Pond & Lake Q & A

I didn’t have fish in my pond before but they are there now. How did they get there?

I didn’t have fish in my pond before but they are there now. How did they get there? Brenda – Golddust, TN

Where Did YOU Come From?

In states everywhere people are being shocked and amazed by the random appearance of fish in their ponds. These fish were not added by the owners of the pond but there they swim none-the-less, almost mockingly. What is this strange magic?! Is this some form of prank?! Perhaps it is the work of alien beings?! What is going on?

Unfortunately, I can not weave a tail of some sort of intricate conspiracy against pond owners across the nation. The far less captivating reason is that, by some sort of mistake, either you or Mother Nature, have unwittingly moved these fish into their new home. Fish can be introduced into new ponds in quite a few ways. Eggs or fry can be carried in on the feet or mouths of water foul and other animals, or can be clinging onto some aquatic plants you decided to add to your pond. Sometimes flooding can wash fish from nearby ponds, lakes, and streams into your pond. While you can try to prevent any fish from making it into your pond, it is pretty much inevitable that over time, they will find a way to make your pond a place of their own. It is not all bad news though, having a balanced fish population actually contributes to a healthy ecosystem and can actually provide you with a form of entertainment whether it be fishing, feeding, or just watching them from the shore.

Not sure if you have fish? Try baiting a hook and doing a little bit of fishing. Odds are if there are some fish in the pond at least one or two of them will bite. If you are not into the fishing scene you can try to place a Fish Trap in the pond with some bait and see what you pull up. You may get lucky and coax them up to the shore just by throwing some bread or Fish Food into the water. Keeping track of the size, number and types of fish you pull out of the pond will give you an idea of what type of fish population you will be dealing with later on down the road. If you notice you are only pulling out prey fish like Bluegill, you will eventually have an over abundance of little fish swimming around the pond in the seasons to come. To keep things balanced you would want to introduce a few predator fish like Bass to the pond. On the other hand, if you notice that you have a lot of small Bass in the pond, they may need a little more help with finding food. Stocking some Minnows, Bluegill, or feeding them fish food will help them grow to a more appealing size. You can read more tips on adding fish by reading our Pond Stocking Blog.

You can also find some helpful information on the pros and cons of feeding your fish with fish food or properly stocking the pond to let them feed themselves here.

POND TALK: What types of fish naturally found their way into your pond? Did you ever find out how they got there?

Grow your fish fast!

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