Watermeal Pond Products

What are these products used for?

• Semera herbicide will kill floating and submerged weeds.
• Mizzen will kill algae.
• SparKlear will eat excess nutrients and clear your water column.
• Dye will give your pond a beautiful deep blue look.

What are the active ingredients?

• Semera: flumioxazin
• Mizzen: copper triethanolamine complex
• SparKlear: beneficial bacteria
• Deep Blue dye: food grade dye

How do you apply these watermeal control products?

Pour the dye directly into multiple places around the pond. For each of the other products, mix them with water in a sprayer and spray over the surface.

Are they safe for fish and pets?

All of these products are safe to use with the fish, frogs, turtles, etc. in your pond and pets or other animals that come visit. Trout, koi, and channel catfish have a sensitivity to the copper in Mizzen. If you have these particular fish, use Cape Furl instead.

Will these watermeal control products for ponds kill duckweed, algae, and submerged plants?

Semera will kill watermeal, duckweed, and a wide variety of submerged weeds plus some algae. Mizzen will kill almost any algae. SparKlear and dye are not designed to kill plants or algae.

When should I apply these watermeal treatment products?

Apply Semera and Mizzen when the water temperature is 60° F or warmer and the weeds/algae are actively growing. Apply SparKlear every 2-4 weeks when the air temperature is 50-90° F, and add dye anytime.

When will I see results after applying them?

• After applying Mizzen, you’ll see full results on the algae in 7-14 days.
• After using Semera on watermeal or duckweed, you’ll see results in 7-14 days.
• SparKlear clears the water column within a few days.
• Dye spreads throughout the entire body of water within a few hours.

Read all labels for complete instructions before applying products.

Weed and algae identification

Our recommendations:

Submerged weed control

Floating weed control

Algae control

Excess nutrient control

How to apply

• Use the Tormada product application boat for easy application of Mizzen and SparKlear
• We do not recommend spraying the Deep Blue dye, as it is not necessary
• Dilute Semera (dissolve first if using granules) and a surfactant with tap water, and evenly spray the surface over the plants
  • Dilute 1 oz. Semera and 8 oz. of surfactant in 1 gallon of water
  • 1 oz. = 1 ½ teaspoons of granules
• Dilute Mizzen and evenly spray the surface over the plants
  • Dilute 16 oz. Mizzen in 1 gallon of water
• Dilute SparKlear and evenly spray the surface of the water
  • Dilute equal parts SparKlear and water
• Pour dye directly into your pond in multiple locations
  • 1 quart per acre

When to apply

• Apply Semera and Mizzen on a sunny, calm day when the water temperature is 60° F or warmer
  • Treat when plants/algae are actively growing and near the surface of the water
  • Treat early in the morning with Semera
  • May re-treat watermeal with Semera every 14 days or when there is new growth
  • May re-treat with Mizzen every 7-10 days or when there is new growth
• Apply SparKlear 1-7 days after Semera and Mizzen and on a sunny, calm day when the air temperature is between 50° and 90° F
  • May re-treat every 2-4 weeks or as needed to keep the water clear
• Add dye anytime
  • May re-treat every 30 days or as needed to keep desired color

Other tips

• Semera application rates are based on a 1 ft. average depth, areas with dense growth may require a higher rate to be used
• Mizzen application rates are based on a 2 ft. average depth, areas with dense growth may require a higher rate to be used
  • In a pond, if the algae are around the perimeter, treat the whole perimeter
  • In a pond, do not treat more than half of your pond at one time. Wait 10-14 days before applying a second treatment to the remainder of the pond
• SparKlear application rates based on a 4 ft. average depth, areas with dense growth may require a higher rate to be used
  • May be used as a preventative treatment
• Dye application rates based on a 4 ft. average depth
  • Additional amounts may be added if deeper color is desired

Semera WDG Label

Semera WDG SDS

Semera SC Label

Semera SC SDS

Alligare 90 Surfactant Label

Alligare 90 Surfactant SDS

Mizzen Label

Mizzen SDS

SparKlear liquid Label

SparKlear liquid SDS

Dye Labels

Deep Blue SDS

See product labels for complete water use restrictions regarding:

• Swimming
• Drinking water
• Domestic uses
• Fish consumption
• Irrigation for food/crop
• Irrigation for turf/ornamental
• Livestock watering

FREE shipping on orders $99+

Orders $98.99 or less will be charged $12.95.

Orders are usually shipped within one day by a ground carrier.

U.S. shipping only.

Certain regulations apply for shipping to AK, CA, CT, DE, HI, ME, MA, NJ, NY, VT, WA, DC. Please contact us if you live in one of these states: 1-877-428-8898.