ALGAE

• ___ bloom (sight along a beach)

• *Birdbath floaters

• A Berkeley scientist has figured a way to make hydrogen fuel from these

• Antifouling chemical target

• Aquarist's problem

• Aquarium accumulation

• Aquarium build-up

• Aquarium cleaner's problem

• Aquarium concern

• Aquarium growth

• Aquarium gunk

• Aquarium issue

• Aquarium microorganisms

• Aquarium nuisance

• Aquarium owner's bane

• Aquarium problem

• Aquatic organisms

• Aquatic plant life

• Aquatic plants

• Aquatic vegetation

• Bane of pool owners

• Basis of the marine food chain

• Big oxygen producer

• Biofuel source

• Birdbath buildup

• Birdbath greenery?

• Birdbath grunge

• Birdbath gunk

• Bits of plankton

• Bloom makeup

• Blue-green organisms

• Bottom of the ocean's food chain

• Bottom-of-the-food-chain organisms

• Cause of pool problems

• Certain thallophytes

• Chlorine prevents it

• Chlorine's target

• Fertilizer source

• Fish food

• Fish tank bane

• Fish tank buildup

• Fish tank growth

• Fish tank plant life

• Fish tank problem

• Fishtank concern

• Food source for some marine life

• Frog spit

• Fungi + ___ = lichens

• Green buildup in an aquarium

• Green growth

• High-yield biodiesel source

• Hot-tub buildup

• It made lake TOO green

• It may fill up your tank

• It's found in ponds

• Kelp beds, essentially

• Kelp, e.g.

• Kelps

• Lake floaters

• Lake growth

• Lake life

• Lake or sea life

• Latin for seaweed

• Lichen components

• Lichen, in part

• Life in the sea

• Life on the water

• Low end of the food chain

• Marine flora

• Organism that can be brown, red or green

• Photosynthetic organisms

• Phycologist's study

• Plankton component

• Plankton, in part

• Pond accumulation

• Pond buildup

• Pond cover

• Pond cover, frequently

• Pond covering

• Pond film

• Pond floaters

• Pond greenery

• Pond growth

• Pond life

• Pond nuisance

• Pond or pool stuff

• Pond organisms

• Pond plants

• Pond problem

• Pond scum

• Pond scum and kelp

• Pond scum and seaweed

• Pond scum and such

• Pond scum makeup

• Pond scum, e.g.

• Pond surface growth

• Pond topper

• Pond vegetation

• Pool growths

• Pool invaders

• Pool maintenance bane

• Pool owner's bane

• Pool owner's concern

• Pool owner's headache

• Pool owner's nuisance

• Pool owner's problem

• Pool service bane

• Pool treatment target

• Pool woe

• Potential pond poisoner

• Primitive aquatic organisms

• Red ___

• Red tide, e.g.

• Reef clingers

• Rockweeds

• Rootless life form

• Rootless life of the sea

• Rootless sea life

• Sargasso Sea floaters

• Sea bloomers

• Sea drifters?

• Sea greens

• Sea growth

• Sea lettuce

• Sea life

• Sea moss, for one

• Seaweed

• Seaweed and kelp

• Seaweed and kelp, e.g.

• Seaweed et al.

• Seaweed, e.g.

• Seaweed, for example

• Sign of an untreated pool

• Sign of stagnation

• Simple aquatic organisms

• Simple organisms

• Single-celled plants

• Slimy aquarium growth

• Snack for a snail

• Snail snack

• Some sea life

• Some thallophytes

• Spirogyras

• Stagnant-water buildup

• Stuff studied on a grade school trip to the pond

• Sushi ingredient

• Swimming pool concern

• Swimming pool problem

• Tank buildup

• Tank top?

• Tiny hydrophytes

• Tiny pond plants

• Type of seaweed

• Underwater growths

• Uninvited pool guests

• Water floaters

• Water growths

• Water plants

• What agar is derived from

• Winter forecast

• With fungi, they form lichens

• Primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves