Interesting study here: https://phys.org/news/2021-01-litter-habitat-diverse-animal-rivers.html
"The scientists found that the surfaces of the litter were inhabited by different and more diverse communities of invertebrates than those on rocks. Plastic, metal, fabric, and masonry samples consistently had the highest diversity, meanwhile, glass and rock samples were considerably less diverse than other material samples.
They observed that flexible pieces of plastic, like plastic bags, were inhabited by the most diverse communities and speculated that the types of invertebrates they found on flexible plastic suggests it might mimic the structure of water plants."
Guess we are going to have start adding trash to our tanks!