Related Clues:
- Fish tank film
- Much pond scum
- Tank slime
- Rootless aquatic plants
- Fertilizer from bogs
- Fuel common in Scotland
- Aquarium scum
- Pond life in a gale disrupted
- Floor plants?
- Fertiliser; fuel
- Aggrieved feelings about a source of fuel
- Unwanted stuff in a fish tank
- Producers of oxygen
- Partially carbonised vegetable matter saturated with water
- Product of decaying flora