I use Aquashade on an anual basis in both my trophy BG and YP single sex pond and my brood stock holding pond, but it doesn't seem to last as long or is as effective as previous years. Could be several factors, but thought I read somewhere it's manufactured in China now and perhaps quality control is lacking? That said it doesn't look any different.

I had some type of pondweed species go bonkers in my trophy pond this year despite plenty of Aquashade over the recommended minimum amount specifed. Very dense amounts coming up off the bottom in 4 to 7 feet of water. Looks like Sago mixed with Bushy Pond Weed.

Going to use a sonar product next year in conjunction with a dye. I have a couple of local cheaper sources I can tap into for generic dye.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.