If you want to maintain several pools that are close together, it is most economical to operate such a system with airlifts and a central pump.
What needs to be considered here?
The most important thing when distributing to many tanks is that the supply lines to the individual tanks – i.e. the hoses – are as short as possible, because the pressure loss (regardless of which pump is attached) is mainly generated in the hoses. The second and equally important point is that all hoses to the individual tanks must be the same length. If this is not the case, less air will reach the tanks with longer hoses than those with short hoses.
The most effective and reasonably priced solution is a ring line, so that you always have the same route from this ring line to the end user, i.e. the air lifters. If you operate tanks on several levels, the ring main must be constructed in such a way that each aquarium level has its own ring main level. aquarium level also has its own ring main level. Here you can see quite clearly how this is realised in our system: Construction of the new breeding room – lots of progress
Construction of the new breeding room – installation of the aquariums
Another important detail is the height of the airlift. This must be the same in all tanks, or to be more precise: the height of the air line below the surface, because you now have to work against the water pressure. And here again, the siphon with the lowest height gets the most, anything longer gets less. So: the air lifters must be the same length and at the same height in all tanks.