CrystalClear PondShock Ball, Natural Enzymes & Live Bacteria, Freshwater Clarifier Shock Treatment, Muck & Sludge Remover for Small Pond & Outdoor Water Garden Ponds, Koi Fish & Aquatic Plants Safe

The bio ball was delivered on time and in great shape. I put it in my Koi pond and it took about 2 to 3 days to see the difference but it most definitely has cleared up the water. I have put it on a subscription basis as I will use it to keep my Koi pond much more clear. Great product!

Absolutely no change in the clarity so far. I’m not sure if the gel was supposed to be outside the hall or not but it was. I was really hoping it would work- even a little.

This worked amazing. Everything I have gotten from the pond guy has worked as said don’t waste your money on other brands because it may be cheaper. This and the other supplies they offer definitely works and I won’t use anything else

I ordered a second one to see if it will help even more. I had neglected my pond last season due to health problems, so extra TLC needed this year. Very impressive results so far with first dose.

The item had leaked so badly that the box it was wrapped in was not intact. The container was dented at the top which resulted in the leak. Due to the leak I’m not sure how well the item will work.

I didn't find it to perform miracles, but that doesn't mean it wont. I do think this is good, and may show more results in late spring rather than early fall.

I use this every month or so.....helps out great with clear pond water

Don't buy! Didn't do a thing to my pond and it's very small...pond liner is 1 i bought at Lowe's few years back.