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The Truth About Aquatic Plants

To plant or not to plant? As is the dilemma facing most freshwater tank and pond owners. Live plants can add beauty and filtration, but come with their own set of issues. If you are interested in pursing adding live plants to your system, be sure to read through the following points.

WAIT! I was told you can’t have plants in koi ponds! No matter what the purists say, you can absolutely have plants and koi together. You can also mix koi and goldfish, but that’s another article.

  • Your system needs to be producing nitrate in order for plants to thrive. If you constantly use an ammonia-binding additive or have a brand new tank, hold off on adding any plant life. Buy yourself a test kit and make sure your nitrogen cycle is established prior to getting those plants in there.
  • Plants can carry pathogens, especially if they were previously housed with fish. That means they need to be quarantined too! Set them up in your quarantine with a few fish to signal if there are any issues. You can also do a hydrogen peroxide dip that will take care of most bugs.
  • You will need to trim your plants regularly as parts die off. If you leave the rotting bits in your tank, you’re only making your ammonia levels worse. Make trimming your plants a regular part of your weekly maintenance and your system will thank you.
  • Fish will try to eat your plants. It doesn’t matter if you feed them the most awesome food on the planet, they will harass your plants if they’re simply bored. Don’t get too attached. You can try to create a buffer zone between plants and fish using mesh or netting. But, be prepared for some losses.
  • If you’re expecting a few plants to significantly decrease your nitrate levels, you will be sadly mistaken. The amount of plants you need to make a dent in your water quality is immense. If you want to use plants for filtration, consider adding a bog filter for ponds or an aquaponic system. Don’t expect those three fronds of anacharis to do the trick.
  • Any medications or treatments you add to the tank or pond will affect the plants. Salt treatments in particular can kill plants. However, if there is a disease in your system, the plants could be harboring pathogens. If you have a disease that could be hiding in your plants, make sure you treat the entire system appropriately. With some diseases, replacing the plants entirely may be the best option.

If you have any interest in adding plants to your system, but aren’t quite sure what to add, please call The Fish Vet Store at 831-728-7003

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  1. […] Quarantine. Quarantine. This includes plants and ALL NEW FISH. The stress of handling and transport is enough to make even the healthiest of […]

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  2. […] food source by feeding your fish less (see point above) or doing more water changes. Maybe try some aquatic plants to put those nutrients somewhere else? Algae will use the light to breathe during the day, but at […]

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