PondWorx Lake And Pond Dye - Ultra Concentrated - 1 Quart Blue

Used in a small 2m by 2m by 0.5m pond. Couple of cap fulls added to the pond (diluted in a watering can with 3 gallons of water) turned the pond inky black.Remains dark black for weeks and then just needs a cap full from time to time to maintain the deep black colour.Makes the pond look great without affecting the plants or wildlife.

I was quite happy as far as how fast this was delivered. Being a Prime Member is awesome! But, that's how far it goes. I was hoping this dye would work. We usually buy a more expensive dye in a Gallon container. This says it would do an acre per quart, with a 4-6ft depth on average. Our pond is maybe a 1/4 acre with its deepest part being 8ft (and it's extremely shallow on the edges and it loses water rather quickly - some kind of leak). Anyway, we are starting to get some murky water that is almost green. The algae is also starting to thicken up even though we have an aerator. We have had some major rain these last two weeks and it quickly filled up the pond (but it loses water just as fast!) and with the heat, the green stuff is starting to take over!I threw the first half of the container in yesterday and it didn't go very far. No change in the water at all. Today, we threw the last half in. Unfortunately, it only changed the color by a bit - it's still green, just a tiny darker green. Does anyone have a better recommendation? My son loves to fish in our pond but it's just getting uglier and uglier by the day due to the heat/sun!**Since it's only been 2 days, I will update for any changes.

I have a 1/3 acre pond that is 2 to 4 ft deep put in the whole bottle and it turned a light green i have used other products that work real good

Great product pond looks amazing