Tetra Pond Water Clarifier, 16.9 Ounces, Treats 2, 500 Gallons

Added to my very cloudy and murky outdoor pond one night and by the next morning it was crystal clear. Didn't harm my fish. It did clog my filter which I expected. Highly recommend.

It works! My pond had a bad algae bloom. The particles were so small the filter mesh weren't catching them. Once I put the liquid in the algae started to clump together and finally get captured by my pump and filter materials. I was finally able to rinse out the green gunk! Some of clumps floated to the top and I used a fine mesh skimmer to scoop it out. I recommend you commit to hang out by the pond when you put it in so that you can be constantly skimming and rinsing your filter mesh to speed up the process. I had so much debris and gunk it clogged my waterfall filter a few times lol. So I just hung out nearby and rinsed the sponge material and put it back in the waterfall so I can continue to filter that stuff out of there. My pond is finally clear and back to normal! My pond is in full sun in the springtime before the leaves on the trees grow back. so I will now be using this product each spring to keep things clear. I have fish and tadpoles and nobody was hurt in the process!

I have a 300+ gallon pond that was really murky and this stuff cleared it right up without bothering the fish. It does make everything settle to the bottom, so a filter is a good idea also.

This didn't work as well as I thought it would. I had a hard time getting my pond clear this year. It always worked before so I don't know if they changed the formula.Or I just didn't work this time.

I used it 4 times. Put in my first treatment, the next day, i cleaned the pump and redid one treatment, the following day the water was clearer and recleaned the pump. waited a week I was out for 4 days came back to green water retreated, the next day, cleaned the pump and retreated, to my amazement the following morning the water was crystal clear. it works but you need to retreat and clean the pump each time, you wouldn't believe it. I am thrilled with this product. Put in the work and watch the magic happen. I have Goldfish in it all were doing well.

After several days and 2 applications, itdoesn’t appear to do what it claims.** Several days later I gave it another application and the pond did clear up.

I had foolishly used sand as a medium for planting lilies. I figured if I had drenched the sand and placed gravel on top, that the sand would be so waterlogged, it wouldn't - well, I was having an off day. Any whoo - 3 bags of 40 pound sand ended up floating out of the containers and making my whole pond look like a dust cloud. I thought it may settle down, but my waterfall and the movement in my 1,300 gallon pond was too strong. After three days, I gave up and ordered this clarifier. I put in 130ml at 10am, by 6pm, I could see the outlines of my waterlily pails. The next morning, I could see where the sand had settled onto my liner. It says that I can treat my pond again with half of the solution in 3 days, but it is pretty clear right now, 29 hours later. So, I may just put this on the shelf in case I have a misfiring of the brain cells again.

First I would like to start with letting you know I am a previous Pet Shop owner in business for thirteen years. I am very educated on taking proper care of my Koi. I purchased this product to clear my 465 gallon Koi pond in which the water was discolored. My water hardness, nitrate, nitrite and ammonia levels are all correct. I have an high end filter that pumps over 400 gph and a fountain so I certainly have proper aeration and filtration. After using this product I begin losing my Koi the next day and I am continuing to lose them daily. I have lost as of today 17 smaller size Koi fish. Over the years in the Pet Indusrty business I spent thousands of dollars stocking Tetra products in my store. I had an enormous amount of regard for the fact that Tetra was a well respected line of products. I even have been to Tetra seminars at Pet Industry trade show when I owned the Pet shop. I am very distraught that I have loss 17 Koi. I have spent time taking a lot a pride in my pond and maintaining it properly. I am not at all naive of how to maintain a pond or Koi fish. I will never purchase ANY Tetra product again and I highly suggest no one ever uses this product unless you want your prize fish dying. I actually treated my pond for less than my actual total gallons because I wanted to be sure what reaction my Koi would have to the chemical. I used 1/4 cup which is instructed to use for every 300 gallons. I followed All instructions 100%! This products needs to be pulled off the shelves of all Pet Stores. I am now concerned how many more of my Koi I will lose. Only have 14 left out of 31. And no my pond was not over populated as my larger Koi was 5" and then they went down in size from that to approximately 2". Buyer be aware!!