APIPOND-ZYME SLUDGE DESTROYER Pond Cleaner With Natural Pond Bacteria And Barley, 1-Pound Container

This stuff seams to work well and it hasn't harmed/killed my Koi yet, so that's a plus. I have an 800 gallon Koi pond with six Koi in it. I started using this about a month ago when I brought my pond out of winter hibernation. The water was pretty green last month. I initially went with half the dosing than prescribed because you can never be too cautious with some of this stuff even when they say they're "fish safe". I monitored the behavior of my fish for about a week and started increasing dosing. So far so good. About a month later, my water is crystal clear and my fish seem happy. I will continue to use this product along with a liquid-based natural bacteria product that I use as well.

I use this and the algae fix and between the two I have noticed a huge improvement. This more than the algaecide definitely. I’ve had the pond 10 years and this is the first year the algae is actually slowly coming off the sides and bottom. It’s literally a 7 x 15’ concrete hole in the ground next to the front door with a waterfall and fountain. It’s gorgeous and I put a lot of effort into keeping up with the algae. I have probably 100 fish in there so between uneaten food and waste.. the algae and buildup around the ornaments is just nuts. I mean I could probably get away with less upkeep, but I enjoy interacting with the bigger cichlids and it’s a nice quiet time for me. The ornaments always get caked with algae no matter what. And the rocks and waterfall, too. This doesn’t really help that thick black algae that builds up on the rocks. API makes a waterfall oxi powder but i’m too scared to use it bc i’ve seen reviews saying all their fish died. I may get it and use it on smaller rocks outside of the pond but not in it. Anyway this mainly just keeps the floor and side walls clean. Water too obviously but knock on wood the water has been consistently clean for quite a few years. I’m pretty much just referring to the constant fish waste and algae buildup around the ornaments and in general. I’ve noticed im starting to actually see the cement instead of one thick green blanket up to the water line. The plecos are starting to eat more fish food bc of the significantly lower algae count. Overall i’ve noticed a huge reduction in algae since adding this to my pond maintenance schedule. It’s June now so i’m sprinkling a little bit in every other day and algaefix every 3 days. I’m in Florida and this will probably go on till October when the heat and sun let up a bit. But this is huge volume and the first tub lasted almost a whole year of constant use. Good stuff.

Good product

Be patient. This does take a little while to get working, but when it does, it does a good job. Follow the directions closely and be sure to treat as recommended on the label. Definitely cleaned up the pond sludge.

This is an incredible product. I was skeptical when I purchased it but eight hours after I applied it to my pond my water is crystal clear and my fish are happy. Highly recommend. The first photo was taken right before the product was applied and the second two photos so the results eight hours later.

I've been using this for 3 weeks as directed, but I don't see any real change in the water. I'll keep trying, maybe it just takes longer.

Works as it's supposed to. Very satisfied with results. 2 weeks in and already see results.

Did not appear to work as advertised. Pond was not especially bad however I did want to see clearer water. Had a lot of fine floating debris. I have been using product as instructed and am noticing absolutely no difference whatsoever. Clarity has not improved one bit. I feel like I wasted y money. I also don't trust products with no factory security such as Styrofoam seal under the cover or the top sealed with plastic.