1 min read
A close up of pond water.

In recreational fishing ponds that are fertilized, water clarity is the most important indicator to tell you when it is time to fertilize again. In this video, Jill Malecki, a graduate student in the Auburn University School of Fisheries, describes how to build and use a secchi disk. This simple disk can be one of the pond owners most important tools in maintaining the fertility of the pond.

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