Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants Hydrothol safe for fish if applied sparingly?

Aquathol K is a liquid concentrate soluble in water which is effective against a broad range of aquatic plants. Aquathol K has a wide margin of tolerance for fish and other aquatic animals.

For the plants that you say you have, you will need to apply 1.25 gallons of Aquathol K per acre foot of water to achieve a 2.0 ppm concentration. With the liquid, you use 1-2 fluid ounces of surfactant rated for aquatic use per gallon of tank mix. Cide-Kick, Cygnet Plus, Alligare 90.

Mix the correct amount of Aquathol K with enough water to get even coverage of the area that you want to spot treat, add surfactant to the tank once you know how many gallons you will need.

Aquathol Super K is a highly concentrated granular form of Aquathol. It is for use in ponds and lakes. It has been shown to be effective against a broad range of aquatic plants.

Apply 13.2-22.0 pounds of Aquathol Super K per acre foot to the area that you want to spot treat. It should be applied evenly across the surface of the water of the whole area that you want to treat.

I have an easier time applying the liquid than the granular. I don't have to worry about what direction I move the boat in (with the granular I don't want to be driving through the dist that the particles may leave in the air) and I can dilute the liquid so I get even coverage, even covering the area going back and forth, then going 90° to the area that I just covered to get even coverage. You don't need a surfactant with the granules.

It all depends on what YOU as the applicator is more comfortable with.

An acre foot of water is 1 acre (approx 208'x208'), 12" deep or 325,851 gallons of water.