First, let's review the range of pumps and other kind of buildings which work like a pump. Algae Terrarium. range=3 Carbon Skimmer. range=3 Deodorizer. range=3 Mini/Big Liquid/Gas pump. range=2 Wheezewort. range=1 Gulp Fish. range=3 Then let's learn more about how pump works. A pump will detect w...