University of Maryland
University of Maryland: Phaeophyceae, the Brown Algae
Structure and metabolism of the brown algae; reproduction, classification, ecology, and uses of brown algae.
University of California
Ucmp: Brown Algae
Life cycle of brown algae, fossil record, morphology, ecology, and systematics.
University of California
Ucmp: Introduction to the Rhodophyta
Describes habitats of red algae. Also has pictures of various genus of red algae, with descriptions.
Microscopy UK
Microscopy Uk: Polysiphonia a Red Algae
Defines red algae. Also gives the habitat, reproduction cycle, and lists different species.
Other
The Krib: Control of Red Algae in Freshwater Aquarium
Causes for red algae in the aquarium, eliminating red algae, the role of carbon dioxide, and algae eaters.
Other
Aquascope: Encrusting Red Algae
Habitat, appearance, and classification of red algae. Growth of red algae.