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Using Pond Dye to Shade Your Pond – Pond & Lake Q & A

Picture of blue pond dye & black pond dye

Pond & Lake Q & A

Q: How do you turn a one acre pond blue in color? My wife has fish in it and wants the blue tint? – Scott of Mississippi

A: Turning your pond a blue color is a great way to not only to provide your pond with a beautiful blue shade, but also will reduce the amount of sunlight that penetrates through the pond. Surprisingly enough, just one quart of Nature’s Blue™ Pond Dye will shade a one acre pond (43,560 sq. ft.) with an average depth of 4′-6′. I would use one quart, wait 24 hours and evaluate. If you would like a deeper color add another 1/2 quart. Also, with Nature’s Blue™ Pond Dye, there are no water use restrictions and it is safe for fish, birds, pets, horses, livestock and wildlife.

If you are more into beautiful reflections and a richer tone instead of the blue shade, I would recommend Black DyeMond™ Pond Dye.

18 Responses

  1. I put 1 gallon of blue dye in my 2 acre pond in May of 2017. It is now February of 2018 and my pond is still a beautiful aqua color and I have not added any more dye. What can cause this?

    • Hi Caren – Even though you still see some color chances are is may not be as vibrant as the day you put it in. Also you do not receive a lot of rain or do not have any areas of overflow where water would run from the pond the color may also last longer.

  2. Does it cover clay? How long does it last?

    • Hi Kimberly – We recommend to give your pond a booster dose of dye every 4-8 weeks. Dye may help mask the appearance of suspended clay but will not remove the clay suspension. If you have a lot of clay you may want to lean towards the Twilight or Black colors. Some pond owners are not able to experience the bright blue color from Nature’s Blue if there is a lot of suspended clay.

  3. Hello! We just bought our new house with a 1/2 acre pond. But I believe it’s a lot deeper than 6ft. I would guess that it’s near 15ft. It was built when they created a new higher road beside us to prevent flooding which plenty of dirt was needed. We won’t know how deep until my husband gets a boat out on it. I used a quart of Blue Lagoon but I am guessing I will need another quart or two????

    • Hi Kera – Pond depth will affect the amount of coverage of pond dye. If it is your first time putting dye in for the season it may take additional dye to get the pond colored, then as the season progresses you may only need a little bit extra every 4-6 weeks to keep the color.

  4. HELP. I used the blue pond dye in our pond, looked great for a couple hours as it was mixing in, however, it is now an emerald green and looks odd. How do I get it more blue? Did I put too much in to begin with?

    • Hi Bryan,

      The more dye you add the more blue the pond should turn. Also if you have suspended clay particulate in the pond it may also create a green tint in the water.

  5. Somebody gave me some blue dye for my pond, I really don’t like not being able to see my fish other when they are right on top how can I get the coloring out or lighter?

    • Hi Jennifer,

      The only way to remove the dye color from the pond is to do a partial water change to lighten the color or do a full change to remove it. Several partial water changes over the course of time will probably be easier for your pond to adjust to rather then starting over completely.

    • I made the mistake of adding too much natural pond shade liquid and have not seen my fish for days. I changed half of the water but it has not lightened the color. I am going to try partial water changes every five days and see if that works. Also, my fish stopped eating. The water temperature has dropped to 61 degrees with the lack of sunlight penetrating the water. I hadn’t anticipated that. The fish aren’t surfacing at the usual feeding time either. I have also invested in a digital remote temperature sensor which is in the mail and has not arrived as of today. I suspect my current temperature probe may also not be accurate. Koi fish should be fed by water temperature.

      • I am sure the temperature drop and the lack of sun from the extra pond shade is making them think it is getting close to winter. You are on the right on the ball with your post Darrel, the only thing I would caution is the amount of water you displace per water change if you are doing them that soon (5 days between each). Just be sure to change the water composition gradually so you do not stress them.

  6. Sharon,

    One product that is great at lifting algae off of rocks is called Oxy-Lift Defense. Although it won’t kill algae, it will quickly and easily lift it from the rocks.

    Sharon, one thing to remember when reading my last post about Combating String Algae, is that if you have an abundant fish load, you have to compensate with more filtration, aquatic plants or natural bacteria to help bring your pond back into balance. Depending on your fish load, I would make sure your filtration system is built to handle your fish load and make sure you add some Water Hyacinth or Water Lettuce if possible. These aquatic plants are great at competing for the same food source as algae. Also, read more about the DefensePAC here.

    Hopefully this helps!

  7. Sue LeCalsey,

    I’m glad to here you are getting great results from our products!

    As for your question, Both blue and black dyes will have the same sunlight filtering properties. It really comes down to a point of preference or like in Cheryl’s case, one color just may be a better option. Your right, in a sense, the more you use the darker the color, thus the longer the sunlight penetration will be restricted, but just know that using the recommended dosage rate on the bottle will get you to where you need to be.

    Thanks for the comment!

  8. Cheryl,

    If your pond has a lot of tannins in it, do you happen to have an abundance of leaves or twigs that fall into the pond? Limiting those, if possible, would help with the color.

    Also, as for the Nature’s Blue Pond Dye or Black DyeMond Pond Dye. I would try the black if your pond has those brownish tannins in it. Blue and Brown usually won’t go well together in that situation. Hope this helps!

  9. I live in Buffalo New York area, its been a very cold winter. The ice has defrosted off my pond and low and behold I have green hairy algea growing on all the rocks in the pond. Its a fairly small pond (10×8), with quit a few goldfish, many are pretty large. I don’t have the waterfall running yet. Is there anything I can do to stop the green hair from taking over further?

  10. We have been using your products now for about 3 years and what a difference in our pond. I started out using your Blue Pond Dye but I’m now using a combination of the Blue and Black DyeMond Dye. I am assuming that the darker the water is, the less light that can penetrate in to allow weed growth. Am I correct in this assumption, or do both colors have the same light filtering properties?

  11. Our natural pond has alot of tannin in the water. I wonder if either of these would improve the color?

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