Chapter 17 in the iAVs Handbook provides a detailed explanation of these factors and other considerations for selecting the appropriate pump for your system.
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Your pump should be able to handle 25% of your fish tank volume per hour, at the head height you need.
For example, if you have a 1000L fish tank that is 1.5meters below the top of the biofilter, you will need a pump with a flow rate of 1000L/p/h at a head height of 1.5m.
The iAVs Handbook also recommend using multiple smaller pumps instead of a single large one. This provides redundancy in case one pump fails and allows for better removal of solids.
Admin Changed status to publish 1 January 2025