Night Blue Lake and Pond Dye - One Gallon of Professional Lake & Pond Dye - Treats Up to 1 Acre - Combination of Pond Champs Blue & Black Dye - Safe for Fish, Wildlife, Pets & Children

I have used this product before as it doesn’t hurt the fish in my ponds, I actually have 2 ponds. I usually put it in the ponds 2 or 3 times a year as it helps control the pond scum. It does change the color of the water to a dark blue. As always prime shipping is the way to go as I know when I place an order that it will be delivered on time.

We have a small pond (~1/4 acre) and have tried several pond dyes to help combat the algae growth. This color is definitely the best so far. Highly recommend. An even nicer aspect is I can get 4 or 5 treatments from a one gallon container and the price is very reasonable. Just remember a little goes a long way and be patient.

Blue black mix creates a nice dark blue color that has a reflective quality. I've used aqua color dye and it looked fake. This color gives the pond a more natural feel.

Tried a number of mfg products, this one seems to work the best although it is more $$$. Our 1 acre pond takes initially three and in mid August one more.

Does a fair job at keeping algae and vegetation in control. If you're expecting pond dye to eliminate growth, you'll be disappointed.

It effectively darkened the water in my pond. After a few days I can see the plant life diminish.

Nice deep, dark blue, exactly what I wanted.

I live in E. TX where the silt is so fine, pond water never settles clear. Typically I use blue dye. The blue doesn't look natural to me and will turn into a pea soup color after awhile. I started adding black to it and it not only looks more natural but the color holds better. Black is harder to find, more expensive and not as strong of a pigment but you don't have to add much of it to blue. This looked great when I added it, the next day when it all settled in, the pigment was very weak. My pond was down 2.5 feet when I dyed. A full gal of blue would have been overkill. Typically I'll dump 1/2 - 3/4 of a gal in and safe the rest to top it off once it rains and fills up more. A full gal., no rain and a gal. didn't cover correctly. For reference, my pond is an odd shape, almost like a dog bone, when full it's roughly 70' x 40' at it's widest points. Call it an 1/8th of an acre? Deepest points might be 7', pond was down 2.5' at the time so call it 65 ft x 35' and max 4.5' deep. If you are just doing a small coy pond that has clear water, you might like this. If you are accustomed to dying ponds, you will be disappointed with this.