MLBBG4 1-Gallon Microbe-Lift Bio-Blue

I add this to my 10,000 gallon koi pond every spring after cleanup and before it get above 70 degrees. It keeps all algae out of my pond BEFORE it has a chance to grow and dyes the water a nice blue color. It is powerful so don't use too much. I don't add again until the the next spring as the plants I have in my pond grew and shaded the water preventing algae. 100% would recommend.

I love this product. It keeps my pond clear and looks very nice. It doesn't hurt the birds or dogs that come around to have a drink. I really could have used a smaller bottle, my pond isn't very big. It is so good, I will use it up in time. JPJ

We have a 1/4-acre earth bottom pond that usually suffers from thick azolla on top once the weather heats up. It actually piles on top of itself. This year, we have had a significant improvement using this. We only had it on at most 15% of the pond surface which wasn't unsightly. For the first time in a long time, our pond looked lovely in the heat of the summer. The koi are happier as are the perch, mosquito fish, and red eared sliders who all reside there with most being rescues. Great stuff!

good purchase will buy again

It keeps my fish protected before the waterlily multiply and stops algae. Keeps your pond water healthy for fish.

During the summer when our pond surface goes below the top of the spill-pipe, the Bio-Blue keeps our water darkened, does it's magic and helps to prevent algae blooms. Been using this for over 5 years now. Pond sparkles!

Product works for blocking out UV rays. Fewer UV rays equals less algaelasts a few month easy in the hot California valley

I used this in a pond with toxic algae (cyanobacteria) and it worked really well to help improve water quality. I have livestock, so it was important to find something safe for my dog and other animals. I'm very happy with this product and will not bother to try others. When I'm out, I will buy this same product again.