Jap snails are a bad idea. Pond cleaning due to Jap snails - doubt it. Have you seen any scientific research about their ability to clean pond bottoms other than opinions on the internet? If you really want something to eat pond bottom organics and small plant growth use tilapia. Tilapia(TP) are excellent for cleaning the pond IF you put in enough to do the job. ENOUGH is the main question. One worker can do only do so much each day. Sometimes it takes more team members to get the job done based on how much clean up needs to be done. If you don't like what TP do for you,,,, then do not add anymore next year. CAN'T GET THAT BENEFIT FROM JAP SNAILS who are also an exotic invasive species - bad idea.
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