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.

Algae are inevitable when you own a fish tank. With proper planning and preparation, you can ensure algae in a fish tank are kept under control, so this plant doesn’t become an issue for your fish.

Many Aquarium Factors Can Cause Algae Bloom The primary cause of algae bloom in fish tanks is excessive light and nutrients. Like all algae, it thrives with an abundant food and light source.

Compartments of consistently sized, tightly packed microspheres are what makes some brown algae shimmer like opal. The Kobe University discovery not only sheds light on the mechanism behind the alga’s ...

A toxic algae called “Heterosigma akashiwo” is blooming in San Francisco Bay, causing the water to look murky and brown and posing a danger to local marine life.

National Aquarium experts are responding to public concern about the mass marine life die-off ... These conditions are perfect for the creation of a brown algae that impacts how deeply sunlight ...

A constituent diatom of brown algae. Picture: Environment Agency The substance can irritate fish gills and anglers have been put on alert to spot the signs of brown algae, which is not toxic.