Brown algae is a common problem in many fish tanks, especially those that have been recently set up. It’s not dangerous to fish but can turn your beautiful aquarium into an ugly mess.

Check out these step-by-step tips on how to prevent and remove algae in a fish tank.

5. Pufferfish One of the most dangerous fish in the world is the pufferfish. There are more than 120 species of pufferfish, ranging in size from 1 inch to more than 2 feet long.

With a few simple cleaning tools, you can quickly make your aquarium look great. Regular cleaning prevents algae buildup and keeps the environment clear and pleasant for your fish. Additionally, a ...

The South Australia fish farming company Clean Seas Seafood says it has detected a potentially damaging algae around one of ...

These algae can be harmful if ingested but also produce toxins that may poison people and animals exposed to them. This combined stock image shows algal bloom, left, and a dead fish, right.

Blue-green algae can be found all over Minnesota. Here's some more info about why it forms and what to look for.

Bristlenose Plecos are small, armored catfish known for their algae-eating prowess. Growing to about 4–5 inches, they're perfect for most home aquariums. These peaceful bottom-dwellers spend ...

Do you own an aquarium at home? If you do, you're familiar with Culerpa Prolifera. It can be found in pet stores, on Amazon, Etsy, and now in the San Diego Bay where it doesn't belong.

Can red tide kill you? Here's what the microscopic algae can do to people, fish. The organism was detected in 172 samples along Florida's Gulf Coast last week.

Red tide is a type of naturally occurring algae bloom that impacts the Sunshine State nearly every year: generally cropping up in the late summer or early fall, according to the Florida Fish and ...

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 ...