How to keep your aquarium clean is a question every fish lover asks at some point. A clean aquarium keeps fish healthy, water ...

New aquarium owners often face a common issue: a dusty brown film on surfaces. This isn't true algae but diatoms, microscopic ...

A "pistachio tide" appears in the Inner Harbor on the morning of Sept. 3. The naturally occuring algae bloom is suspeced in a massive fish kill in the harbor Wednesday. Photo courtesy the National ...

Fish are dying in Arizona's Canyon and Saguaro lakes due to a "a golden algae toxin bloom." We're hearing from an ASU professor who explains the dangers of the bloom. Fish are dying and can be seen ...

RICHMOND -- From Hayward to Sausalito, dead fish are washing up on shores as a toxic algae bloom takes hold around the Bay Area. In Oakland's Lake Merritt the fish are even stacking up on top of each ...

A rapacious, fish-killing algae linked to the recent loss of more than 1,000 fish in a Gilbert lake also has been found in Saguaro Lake. The fast-spreading species of golden algae could do extensive ...

An algae bloom has killed thousands of fish in the San Francisco Bay Area in recent weeks, officials say, forcing shoreline cleanups, spreading unpleasant odor and spurring scientists to further ...

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A vast bloom of toxic algae is killing more than 200 species of marine life off the southern coast of Australia, scientists and conservation groups say. The algae — Karenia mikimotoi — appeared in ...