? It is neither nitrifying bacteria nor illumination. If I have to say, it is because there are no nitrifying bacteria in the tank and there is a lack of light. If there are nitrifying bacteria, ammonia nitrogen in the water will be converted into nitrate, which will cause brown algae to lose their source of nutrition, and in a well-lit environment, green algae are more likely to grow in the fish tank than brown algae.
1. Manual cleaning: The most commonly used way to clean brown algae is manual cleaning. It's a quick way to clean up, but it doesn't really improve the problem, and the brown algae will continue to grow and multiply. Before cleaning up, fish should be fished out first, so as not to cause adverse effects on them, and at the same time, water should be discharged so as not to pollute the water quality.
2. Fish culture cleaning: In addition to manual cleaning, brown algae can also be cleaned by fish culture. Many algae-eating fish are good choices, such as moss rat, black line flying fox, elf fish and so on. It should be noted that moss rats only eat algae when they are young and pose a threat to other fish when they grow up. The elf fish only feeds on algae, and once there is algae in the tank, it will starve to death.
3. Drug cleaning: The so-called drug cleaning is to pour a proper amount of algaecide into the tank, but this method must be careful, because if the dosage is not well controlled, it will pose a threat to the health of fish, so do not use it easily.
