Really great item ! I hadn't got a clue about these products but I was after something to get rid of mosquito larvae in a small water feature. I added a portion of one of these and within 2 -3 days I had no larvae. I was amazed. The item did float about and the break down but it all worked fine. Really do recommend this item . Remember to add more of the product on a regular basis during the mozzie season. I'm in UK & it's working great here in my water feature.
Verified purchase: Yes | Condition: New
They don't work....had them in pond area for a couple days...larvae is alive and well. Would not recommend.
Verified purchase: Yes | Condition: New
I have a tub full of drift wood and pond snails that were full of mosquito larvae. I used this and the snails were fine plus it killed the mosquitos. The only reason it received 4 stars instead of 5 was that I was never able to get a call through to the manufacture for questions about invertebrate safety. It states safe for animals and life in general but invertebrates are at chemical sensitive.
Verified purchase: Yes | Condition: New
These are great to make standing areas of water impervious to mosquito larvae, such as old pools and water features. I find it cheaper to buy these online through Ebay than my local WalMart, and better yet, the shipping is free.
Verified purchase: Yes | Condition: New
I will not use my outside pond without these mosquito dunks. They do work ! ! Great Value also.
Verified purchase: Yes | Condition: New
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