Awesome, I always wanted to be a smurf. I picked up this stuff for $10 a bottle when it retails for around $30. I have used it before on fountains and small koi ponds, but this pond is kind of large. Probably go to Aquashade next treatment as that was a one time clear the shelf deal. I have a few of those turkey injectors around somewhere. No squirt gun, those things leak like hell. I have a sprayer also. I have to at least try that. Even better than a smurf I could end up like that chick on Willy Wonka and be a blueberry. A violet Frog. But according to my latest Pond Boss magazine article, dye is one of the better treatments. Get to fish pond for rest of day when I finish so I need to get this done. If there are any white muskrats will this turn them blue? Thanks for the ideas.