Related Clues:
- Organisms in birdbaths
- Plants with no roots or leaves
- Floating sea plant
- Mucky green stuff in pools
- Green pond growth
- Growth in an aquatic bloom
- Unwelcome aquarium growth
- Organisms that turn pools green
- Red tide bloom
- Greenish aquarium buildup
- Sushi roll exterior
- Chlorophyte, e.g
- Rootless water plant
- Pond's grimy film cover
- Simple pond organism