Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants How to control FA (filamentous algae)

I would do a multi pronged approach, but since you have a bunch of water that is 2-3 feet deep, that area will be the problem child.

I would add as many plants as possible to utilize the nutrients in the pond. Use a good dye in the pond to limit light penetration to 36" max. Get Tilapia pre-ordered for delivery. Once the water is 60°F and you know when they are bringing the TIlapia, kill all the FA in the pond with Cutrine Plus. Then stock the Tilapia within 5 days. You have to stock a minimum of 40# per surface acre or they might or might not work. You HAVE TO kill the FA right when the Tilapia are stocked or they flat out can't keep up with the old and newly growing FA. Tilapia should be as small as you can get them, but still be large enough so they aren't eaten by the predators in there.

You can try other options, but after years of doing this in peoples ponds, that is the only way to guarantee that they will work. Stocking them at 1-2 per pound won't give you enough mouths to eat the algae that is growing and you most likely will have to kill all the FA in the pond after the Tilapia have their first spawn.