BioSun Purple Non-Sulfur Bacteria for Ponds and Lakes – Fish, Plant and Wildlife Safe Pond and lake Clarifier and Fountain Cleaner (32 oz)

I use this product in my aquariums at a rate of 2.5ml per 10 gallons once per week. What a difference this has made. In my saltwater aquariums, I haven't had any issue with cyanobacteria or dinoflagellates since starting this regimen. The corals look much healthier as well. As for my freshwater planted aquariums, my tetras look much more vibrant, the plants are healthier, and the water stays clear. This is also great to add to your watering can to water houseplants or even spray your whole lawn with it.

I have been using this product for a month in my reef tank. I was concerned about the potential smell of the product. However, it is not any worse than that of other "specialized," much more expensive reef-marketed PNS products while being a fraction of the price. It is hard to tell whether it has made a difference on the health of my fish or coral. What I can say, however, is that it has helped me stabilize nutrient levels without any negative results. The reason for giving it four stars is a transparency issue--it would be helpful for the manufacturer to specify the type of PNS strains used in this product.

Horrible smell but no complaints otherwise

Didnt do as other Pnsb has, actually did nothing but momentarily stink up the water around it. have used it for about 3 weeks now

Used this with my reef aquarium, as rhodobacter is the predominant genus of bacteria in healthy reefs. Hard to say for sure, but it's dropped my nitrates, phosphates measurably, so it seems like it's working well. Would recommend.

I use it for four of my freshwater aquariums with no problems. The water stays crystal clear for a long time. My aquatic plants look good and the fish don’t mind it. I’m happy with the product and fast shipping.

I added this the day before the fish. And not one died. Maybe it worked, maybe I was lucky But it did the trick for me on a fresh new pond.