How to keep a pond clean

April 27, 2011

1. Many of the reasons for cloudy water are because the pond is built improperly. The water level in the pond must be above the surround area. If it is not, run off when it rains will go into your pond. So all the dirt from roads, grass or lawn, roofs, and driveways will end up in your pond. If you have built your pond below grade, you will need filtration to keep the water clear. That filtration can be as simple as a submerged foam rubber filter, a container of lava rocks that the pump sucks water through or as extensive as an exterior bead filter with a UV light attached. But you will need filtration or your water will always be cloudy and algae filled.

2. If you have koi, you need filtration. Koi are magnificent eating machines. And the more they eat, the more waste they produce. Fish waste feeds algae and algae turn your water green. If you want to keep koi, think about a bead filter or at least an exterior sand filter.

3. If you have goldfish and feed them, you will need filtration. Usually a lava rock homemade filter will be sufficient, but sometimes, if you have a large amount of fish in a small pond, you will need a large filter system. As with koi, go with an exterior bead filter or submerged commercial filter system. If you balance your pond ecologically and do not feed your fish, you will need no filtration at all.

4. Cover half the top of your pond with floating plants. When sun hits water, algae form. Keep the water half covered and half as much water will be in the sun. Use water lilies or water hyacinths. Water clover or water poppies work well for natural cover.

5. Watch your bioload. If you have too many fish, the fish waste will not be absorbed by your ecologically balanced pond and the water will turn green. One linear foot of fish per 25-square feet of pond surface is a good rule to follow.
6. Know the pH of your water. If it gets on the basic side, algae grow and the water turns green. Usually this will fix itself if the pond is balanced. If it doesn’t after a couple of weeks, you can buy a commercial product to lower the pH or you can use muriatic acid. Be careful if you do. It can be dangerous.

7. If you find string algae or blanketweed, a common problem introduced into ponds, usually with new plants, a bale of scotch barley works to eliminate it. Be patient. It can take as long as a month to work. Always put another bale in the water before the old one is completely decomposed.

8. If blanketweed continues to be a problem, you can use a black dye for about 3 months to be rid of the stuff for good. Black water is great in a reflecting pool and water lilies look great swaying atop the black water. Your submerged vegetation will not be harmed.

9. You can use a commercially made product and they work well for blanketweed control. Just be very careful in the application because the algae clump at the bottom and can deplete pond water oxygen. If that happens, your fish will die.

10. If you are under a tree and your water is a brownish color, the tannin from the leaves is staining the water. The only way I have found to clear tannin is to use activated charcoal in your filter. You can find it in an aquarium store. Wash it first, put it in an old panty hose leg and put it in your filter. Change it when the water begins to turn brown again. Do NOT use the charcoal you barbecue with. It is not the same thing.

Ponds are the focal point of our gardens. We want our water to be clear and clean. The best way to do that is with benevolent neglect and keeping the pond balanced ecologically. But if you wish to feed the fish or keep koi, you must work a little harder for clear water. Using these few easy fixes will do that for you.

Article from Jan Goldfield, Yahoo Contributor:

Winterizing Your Pond

December 7, 2010

Putting your pond to bed for winter doesn’t need to be an arduous process. Sure, it’s sad to say goodbye to your finned friends for a few months, but following a few simple tips will ensure that your fish joyfully greet you again in the spring.

Remove leaves and debris
Putting a pond net over your water feature before leaves start falling from trees is the easiest way to contain and manage leaf control. Once all the leaves have fallen, simply roll up the net, discard the leaves, and put the net away until the next time it’s needed. Cool Ponds offers different sizes of pond nets, just measure your pond and stop by Cool Ponds located at 2001 Bayshore Blvd, Dunedin, FL 34698, or call 727-738-4974.

If you didn’t install netting, you’ll probably have a buildup of leaves and debris that need to be removed. A long-handled pond net makes an easy job of scooping the debris from the bottom of the pond. If you leave the debris on the bottom of the pond, you’ll be creating a bigger mess to face in the spring.

Trim dead or dying foliage
Stop fertilizing your aquatic plants. Trimming dead foliage helps remove excessive organic debris that would otherwise decompose in the water. Cut back hardy water lilies just above the base of the plant and cut back marginal plants that could droop over into the water.

Add cold water bacteria
Add cold water bacteria to help keep pond water clean and clear. Cold water beneficial bacteria contain concentrated strains of beneficial bacteria designed to work in temperatures lower than 50 degrees. Regular use of cold water beneficial bacteria will help maintain water quality and clarity, as well as dramatically reduce spring maintenance by digesting debris that may accumulate over the winter months.

Ensure healthy fish before winter
A well-balanced diet creates healthy, happy fish. You want to make sure your fish are in good condition before they go into hibernation. When the water temperature falls below 60 degrees, the metabolism and digestion of your fish begins to slow down. Cool Ponds carries Blackwater Creek Premium Cool Season Fish Food is scientifically formulated to properly nourish your fish during these lower temperatures. Be sure to stop feeding your fish when water temperature falls below 50 degrees.

Taking a little time and effort to prepare your pond for winter not only helps your fish survive their winter slumber, but makes your spring maintenance much easier. Be sure to follow these winter guidelines so you can experience the greatest joy from your pond when spring rolls around once again.

Must haves for the winter
Here is a list of items that Cool Ponds recommends for the winter season.

  • Pond Thermometer – (you need to know what your water temp is. Air temps & water temps can vary greatly.)
  • Pond netting – Covering your pond keeps leaves and debris out. Also, it keeps predators from eating your fish.
  • Blackwater Creek Cool Season Fish Food.
  • Cold Weather Bacteria
  • Laguna Pruning Tool

Winter Blow Out Sale

November 22, 2010

On Saturday, December 4th 8am to 5pm and on Sunday, December 5th from 10am to 3pm, Cool Ponds in Dunedin, FL will be having a huge Winter Blow Out Sale.

Below is just a sample of what the saving will be…

  • Spitters up to 45% off
  • Pressure Filters up to 45% off
  • Pond Plants, BOGO, buy 1 get 1 free (of equal or lesser value)
  • Koi Fish, buy 1 koi, get the 2nd koi 1/2 price (o equal or lesser value)
  • All rocks and gravel on sale (this includes washed crushed shell & rail road ties)
  • Stone Tables 40% off
  • Concrete bird baths 25% off

We have some items that have been closed out or discontinued and have been marked down up to 50%.

Stop by Cool Ponds early to get the best selection.

FYI… Winter Hours:

Cool Ponds will be closed on Nov 25th & 26th

Starting December 12th, Cool Ponds will be closed on Sundays.

Cool Ponds will be closed from Dec 24th until Jan 2nd. We will reopen on Monday, January 3rd @ 8am

Cool Ponds, 2001 Bayshore Blvd, Dunedin, FL 34698


Cool Ponds answers your cold weather pond questions….

October 26, 2010

Winter is a transitional time for a pond. From fish and food, to equipment and plants, caring for the pond in the winter is an important time for your ecosystem.

Fish and Food
In most parts of the United States fish can be left in the pond during the winter, providing the depth of the pond is adequate (18 inches minimum or deeper in harsher climate zones). Fish will gather in this deepest area of the pond where the water temperature remains more stable and go into a state of hibernation during the winter months. Note that some types of fish, such as plecostomus (sucker fish/algae eaters), fancy goldfish with ornate tails, bubble eyes and lionheads, are sensitive to cold weather and should be brought indoors. Here at Cool Ponds, we leave our koi and goldfish in our ponds.

As winter approaches, you should monitor pond water temperatures daily. When your water temperature is between 70°F – 50°F, you should feed a cool weather fish food (available at Cool Ponds). Once the water temperature falls below 50°F, you should stop feeding the fish altogether. Some may worry about not feeding their fish, but you can rest assured that your fish will naturally rely on stored energy reserves built up during the summer to sustain them throughout the winter months. Cool Ponds sells pond thermometers perfect for monitoring your water temps.


In the past, readers have asked us for advice on what to do if they are NOT closing up the pond because they live in a warmer climate. If you live in a spring or summer-like region, like we do at Cool Ponds, we suggest you continue to monitor your temperatures and follow our Cool Ponds Seasonal Feeding Cycle. If you have premium Koi, continue to feed Blackwater Creek Cool Season Koi Food. Blackwater Cool Season food is blended to be easily digested during the seasons when water temperatures stay below 60°F (16°C). During this time of year your fish’s metabolism slows and digestion is more difficult. The Cool Season diet contains a complete mix of ingredients for the cooler times of the year. Feed this diet prior to breeding season to reduce fat deposits and the possibility of “egg-bound” females.
If you live in a cold climate, disconnect the pump, filter and UV clarifier before water freezes. Be sure to store the UV clarifier indoors for protection. It is also a good idea to store filters indoors (if manufacturer’s directions suggest). If you live in a northern climate zone where your pond will freeze over, it is very important to purchase or have a pond de-icer ready for installation. Gases, which are produced by decomposing organic material, are toxic to fish when they are trapped beneath ice covering the pond’s surface. Only a small hole is needed to allow these gases to escape and ensure the survival of your fish.

Most aquatic plants (with the exception of tropical lilies, water lettuce and water hyacinths) can be left in the pond through the winter. Trim back all dead foliage, and then submerge the plants in the bottom or deeper section of the pond to prevent the plants from freezing. Hardy water garden plants will come back year after year. Consider bringing tropical lilies, water lettuce and water hyacinths indoors for the colder months.

Cool Ponds is located at 2001 Bayshore Blvd, Dunedin, FL 34698. We can be reached at 727-738-4974 or Visit our website at

Welcome to Our Blog!!

April 15, 2010



Hello Everyone!

Welcome to the Cool Ponds Blog.  We are extremely excited to start sharing all of our exciting projects, photos, and important information along the way. 

Soon, we’ll have useful and fun information for you to read. If you own a pond, or would like to own one, you should definitely check our blog often!

Hope you all enjoy!

And please don’t forget to visit our website:

Thank you all!! And looking forward to hearing from all of you!

George Ruiz


Cool Ponds