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.

This common scourge of the fish tank forms long strings, giving it a hairy appearance. It is also known as string algae. While unsightly, green hair algae is not toxic to fish or invertebrates .

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.

Siamese Algae Eaters are active fish that excel at consuming various types of algae, including the stubborn black beard algae. They can grow up to 6 inches and are best suited for larger tanks.