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My pond was clean but now it’s starting to turn green. What should I do? | Decorative Ponds & Water Gardens Q & A

Q: My pond was clean but now it’s starting to turn green. What should I do?

Q: My pond was clean but now it’s starting to turn green. What should I do?

Cynthia – Richmond Hill, GA

A: First of all, don’t panic! Let’s begin by taking a look at the three main causes of green water: too many fish, inadequate filtration and not enough plant coverage.

Control Your Fish Population

A booming population of goldfish, koi or other pond fish means an overload of fish waste, and all those excess nutrients actually feed the algae that’s turning your water green. To keep that waste in check, we recommend one 6- to 8-inch fish per 10 square feet of surface area. If you have too many finned friends, consider giving some away.

Provide Adequate Filtration

If your fish are family members and you’re not quite ready to bid them adieu, you’ll need to pump up your filtration with an AllClear™ PLUS filter. Adequate mechanical, biological and ultraviolet filtration will remove the excess waste from the water and help control the prolific green stuff.

Shade the Water

Algae are plants, and plants need sunlight to grow. A third way to control algae is to shade the water with plants like water lilies and water hyacinth. We recommend that you shade 40 to 60 percent of your pond for best results. The plants also provide all-natural biological filtration and make your water garden look great. Not sure what kinds of plants to get? Start with our Aquatic Plant Package, which includes a great selection of cultivars for your pond size.

Give It Time …

Most importantly, try to practice some patience. If you’ve just done a major cleanout, your biological filtration may need some more time to get established and working. Give it a kick-start with some beneficial bacteria like Nature’s Defense®. The microorganisms will get to work digesting those dead organics.

If you control your fish population, adequately filter and shade your water, and boost your biological filtration by adding bacteria, your pond will be clear again before long—and you can stop singing those green-water blues.

Pond Talk: If you’ve had to give away some of your fish, how do you find new homes for them?

Three Types Of Filtration, One Powerful Unit - The Pond Guy® AllClear™ PLUS Pressurized Filter

How Can I Create a Fish Habitat Without Overtaking My Pond With Weeds? – Pond & Lake Q & A

Porcupine Fish Attractor
How Can I Create Fish Habitat Without Overtaking My Pond With Weeds? Tyler – Elmo, UT

There’s No Place Like Home

Your fish require adequate habitat to live, reproduce, and grow but who’s really keen on letting weeds overtake their entire pond to aid the cause. Fortunately there are some tricks to help control the natural habitat in your pond and even a few alternatives that can work just as effectively.

Most of us can agree that having a bit of plant life in our ponds is a good thing, but at what point does it get out of hand and become a nuisance? Aquatic Plants help reduce your ponds sun exposure and nutrient load which naturally encourages a cleaner pond with less algae blooms. Lillies can add some color to your pond while cattails will provide a natural wall around areas of your yard giving you a little extra privacy. When aquatic plants are appropriately implemented  they are both functional and attractive. The key to keeping your plants in check is by giving them boundaries. Mark the areas of your pond that you feel are best suited for aquatic plants, away from your beach area and dock, this way you will have a visual reference when checking if the plants are trying to spread out of control. You can then remove the plants that grow outside their appropriate areas with Pond Tools or Aquatic Herbicide when necessary.

For those of you with no interest in flexing their green thumbs, Fish Attactors may be the perfect habitat for your pond. These plastic spheres accept 1/2″ PVC pipe which you cut to a length of your choosing. The PVC pipes form a pattern that provides shelter for smaller fish while keeping larger predators at bay. The hollow ends of the PVC pipe also provide an excellent place for minnows to spawn. If you like to fish in your pond, these attractors have a huge advantage over natural habitat as they do not hang up your lure. Man made habitat like the fish attractor won’t contaminate your pond or bio-degrade so you don’t have to replace your habitat each season.

It is not uncommon for people to sink pine trees, pallets, cinder blocks, bricks, and other miscellanous items in their pond. These things will provide coverage to your fish but they may also have adverse effects on your water quality as well. Items that bio-degrade in your pond will add to your nutrient load, so if your are considering sinking a tree or some wood skids in your pond make sure you are compensating with additional PondClear™ or MuckAway™ to keep nutrients at bay. Also if you swim in your pond, keep in mind that while some products are degradeable they may be held together with nails or staples. Before adding objects into your pond make sure they are clean and they do not contain any contaminates that will pollute the water. Plastic containers, for example, may provide shelter to your finned friends but what were they previously holding? Oily residues or trace chemicals left that remain on these products can be harmful to your ponds ecosystem so use caution before you sink them in the water.

Advanced planning and considerations will make all of the difference in keeping your pond and its inhabitants happy and healthy. Choosing the habitats that work best in your unique scenario and implementing them correctly will ensure your pond is full of life for years to come.

POND TALK: What types of fish habitat do you use in your pond?

Porcupine Fish Attractor, Pack of 3 Spheres

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