The characteristics of successful biofloc have standard
1. Thickness ranges from 10 to 20 cm.
2. Water Conditions at Neutral pH
3. Biofloc Not Foaming
4. Light Brown or Creamy Water
5. Odorless
Biofloc Fail
Here are some characteristics of failed bioflocs:
1. Biofloc Not formed
One of the main characteristics of failed bioflocs is that they do not form. This condition is usually caused by insufficient organic matter, insufficient floc core constituents, inappropriate C/N ratio (too low), and weather disturbances (rain) so that the water concentration is too high and biofloc cannot settle.
2. Biofloc is too concentrated
The biofloc that was formed but was too dense, it can be said that the biofloc that was made was also not successful. In other words, biofloc that is too concentrated or thick can affect the condition of the water in catfish ponds. This condition needs to be avoided because the presence of too concentrated biofloc can affect fish due to the lack of dissolved oxygen in the pond. This can inhibit the growth of fish if the oxygen supply is not sufficient.
3. pH conditions in water are too acidic
Biofloc material which is an arrangement of organic matter has an impact on changes in the pH of the water in the pond. The content of dissolved organic matter will lower the pH of the water, thereby increasing the acidity of the water in the biofloc pond. Acidic pH conditions have an impact on the dissolved oxygen content in the water. If the oxygen content is low then respiratory activity will decrease and cause anaerobic bacteria to easily grow and give rise to aquatic parasites.
4. The color of the water has a cloudy white color
The color of the water that is too cloudy and white indicates the content of lime and minerals is too high. This content in some aquaculture is not recommended because it will raise the pH and make the water conditions alkaline. This condition can cause stunted fish growth because the water hardness level becomes too high. In addition, another impact of high water hardness is causing poor pond aeration.
5. Presence of sediment
Biofloc will certainly be said to be successful if a layer of biofloc is formed on the surface of the pond. If the biofloc is not successfully formed, sedimentation will occur at the bottom of the pond. Sedimentation is usually in the form of organic matter originating from fish waste that is not decomposed and leftover feed that is not eaten by fish. Deposition of organic matter at the bottom of the pond will cause high levels of dissolved organics in the water. These conditions can cause fish to experience mass death due to poisoning by dangerous compounds.
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