How to Calculate MBBR for Fish Farming: Practical Guidelines and Reference Values
How to Calculate MBBR for Fish Farming: Practical Guidelines and Reference Values
Example 1: 35 KG of Fish per Cubic Meter of Water
If you're raising 35 kg of fish per cubic meter of water, the biofilter (biological treatment tank) should be designed to be 25% of the total volume of the fish tank. The MBBR media should fill 30% of the biofilter volume.
For instance, with a fish pond of 100 cubic meters, where the total fish weight is 3,500 kg when fully grown, you’ll need to construct a biofilter that’s 25% of the pond volume:
· Biofilter volume = 100 * 25% = 25 cubic meters
· MBBR media required = 25 * 30% = 7.5 cubic meters
Thus, for a 100 cubic meter pond, 7.5 cubic meters of MBBR media will be needed to support optimal biological filtration.
For higher-density farming, if you're raising 50 kg of fish per cubic meter of water, the biofilter should be 30% of the fish pond’s volume and the MBBR media should still fill 30% of the biofilter volume.
For a 100 cubic meter pond with 5,000 kg of fish:
· Biofilter volume = 100 * 30% = 30 cubic meters
· MBBR media required = 30 * 30% = 9 cubic meters
In this case, for 100 cubic meters of water, you’ll need 9 cubic meters of MBBR media.
General MBBR Calculation for Fish Farming
For general fish farming, the typical recommendation is that the biofilter volume should be 50-60% of the total water volume, with a circulation rate of one full cycle per hour. The MBBR media should occupy 30-40% of the biofilter volume.
Let’s break this down with an example:
If your fish pond has a volume of 30 cubic meters, the required biofilter volume would be:
· Biofilter volume = 30 * 60% = 18 cubic meters
· MBBR media required = 18 * 40% = 7.2 cubic meters
Therefore, for a 30 cubic meter fish pond, you would need to install 7.2 cubic meters of MBBR media in the biofilter.
For more specific requirements or assistance with your fish farming setup, feel free to reach out to us!
