My little 1/8 acre spring fed pond is becoming full of weeds and algae that I'm trying to get under control. I would really love to fertilize instead of using pond dye, but from what I've read this will probably just cause the weeds and algae to grow more since it's already established. I'm not sure what the pH is, but I'm thinking maybe I should just use pond dye this summer and then lime in the fall and try fertilizer next spring? I was considering trying to get a couple grass carp, possibly even some tilapia to help with the problem this year. Any thoughts or suggestions are appreciated. I have sprayed with copper sulfate and it worked great but the algae keeps coming back.