. The brown algae on the fish tank stone does not need to be removed when the number is not large. If it is really ugly, you can take out the stone and clean up the brown algae on it. Brown algae generally appear in the early stage of fish farming, they do not require high light, but also can absorb ammonia nitrogen. When the nitrification system is established, the amount of ammonia nitrogen will be controlled, the number of brown algae will be reduced, and the water quality will be gradually improved.
? 1. Weak light: Unlike many common algae, brown algae does not need much light, and even the stronger the light, the heavier the restriction on its growth. It can only survive in a low-light environment. So if you want to curb its growth, you just need to strengthen the light, and this will also promote the growth of green algae.
2. High ammonia nitrogen content: Brown algae mainly rely on absorbing ammonia nitrogen in water as nutrients, so when the ammonia nitrogen content is high, it will appear. When a good nitrification system is established in the fish tank, ammonia nitrogen will be converted into nitrate, and the growth of brown algae will also be affected.
3. Unstable water quality: Usually, brown algae appears in the early stage of fish farming. At this time, the water quality is very unstable. After a period of normal feeding, the various systems in the water have been perfected. Good filtration can continuously filter out algae, so as to make the water environment better.
