I've been lurking here for about two years and wishing my pond was more clear. Water this year looks like chocolate milk. Was murky in spring of last year and seemed to clear up alot, but not enough for my liking.

Pond is 3 acres, 4.5 ft avg depth, 16 ft at deepest.
I have three aerator heads that i turned off a week ago and i dont see any difference.
I put in 10 triploid grass carp (8") last april to help with weeds.

I brought home three jars of water from my pond.
Put two on the counter and one in a dark cabinet. Dark one looks the same as the other two.

This morning, after ten days, they had some sediment but still seem dirty.
I put a small amount of alum in one jar and within one minute it had flocked up a bunch of stuff.
I have attached a pic of two jars, one with alum, the other without.
Both jars have a red circle and black x on the paper behind them.

What does everyone think? Do i need to take the alum plunge?
Attached Images