Ultimate Pond Bacteria, Outdoor Pond & Lake Natural Beneficial Bacteria Treatment, Aquatic Odor Reducer & Sludge Digester, Fish, Plant, & Livestock Safe, Easy Dosing Liquid, 1 Gallon Bottle

This is so good to keep the algae at bay in our waterfall feature. Great purchase and quick to ship!

As advertised

Applied it to a 1000 gallon pond and it worked well. It took about a week to see the best results. Wondering if anyone knows how long it will last in the bottle? I had some left from last year and it doesn’t seem to be working as well. I will try a new bottle again and report back the results.

I usually do not write reviews but I'm so impressed that this actually works! I tried to upload photos but couldn't for some reason. Our quarter acre pond was solid green with algae a week ago. We did one treatment so far (used 1 quart) and everyday watched the algae gradually dissappear. Now, there is very little left. We still need to do another treatment as the directions state but I'm so happy and our ducks are happy!

Saw no effect on sludge

My 8000 Gal Koi Pond in full sunlight developed serious algae problem. Tried diatoms, Cu, bacteria concoctions, sludge removers (no sludge), dyes, - all no good. Pond got worse. Algae need sun, so I installed sunblocker screens, Royal Shade, 6' X 50' cut in half. In one day, pond was clearer.

I found this product effective for keeping the floating algae under control in my 1/4 acre pond. But I found it a hassle to apply. I did not want to pour an entire dose in one spot, so I would make myself go all the way around the pond to distribute. I have steep slopes that are often muddy, so getting close enough to the water multiple times was a hassle. Fortunately, this same vendor offers a similar product in powder packet form. I just love that product because I can quickly and easily toss a couple of water soluble packets out into the pond.

I'm sure the pond needs it, I just haven't seen any evidence of it doing anything yet. I have put it in weekly as directed. It's just been 3 weeks. It probably takes 3 months or more to see a change. In theory it should help.