Related Clues:
- Seafood's special gastronomic ingredient
- A seaweed
- Seaweed plant
- Primitive non-flowering, mainly aquatic, plant
- Aquarium build-up
- Seaweed found in botanical garden
- Aquarium accumulation
- Phycological unit
- Simple plants, such as plankton
- Tiny organism that's often pluralized
- Bit of pond vegetation
- Blue-green growth
- Plankton minutia
- Bio fuel source
- Swimmer's annoyance