"rather than providing a solution to the threat plastics pose to aquatic life, the tiny creatures known as rotifers could be accelerating the risk by splitting the particles into thousands of smaller and potentially more dangerous nanoplastics" https://www.theguardian.com/environment/2023/nov/09/microplastic-eating-plankton-worsening-crisis-oceans-plastic-pollution
Microplastic-eating plankton may be worsening crisis in oceans, say scientists

Rotifers could be accelerating risk by splitting particles into thousands of potentially more dangerous nanoplastics

The Guardian