I'm look for advise on killing vegetation by using pond dye to stop the sunlight penetration. I really let my pond get out of hand this year. Normally I keep the pond at full pool using my well. Well this year I did nothing to see how nature would take care of it. Let just say that nature didn't take care of it. The aquatic vegetation got so dense there was no area to fish. I have been raking the pond daily for months now. Pulling out coon tail 3 feet wide and sometimes 6 feet long. I have gotten out most of the vegetation so that when I kill off what's left there won't be a fish kill due to oxygen depletion. Well' I'm hoping. The pond seems to be pretty clear now. But I do want to kill off the remaining weeds and still continue to pull them out as well. If this were the spring or summer months I would have fertilized the pond. But since it is October , I dyed its dark blue to stop the sunlight. I know there are other ways of doing this, but this is the route I chose. So my question is how dark does the dye need to be to be effective? The water is dark but I can still see through it. Should I go darker?

3rd acre fertilized fed and aerated