The object of a reefkeeper’s affections: healthy,
colorful corals: we know how to do it, now can we
do it smarter and with less financial outlay to the
Water motion inside a reef tank needs to be a particular
flow speed, which is not necessarily random or chaotic.
As the speed of water flow increases, so does the turbu-
lence which allows for gas exchange in corals and sessile
reef animals and bacteria. For any tank up to six feet
long, the only real consideration for water flow within
the tank should be some form of propeller water pump.
Propeller pumps are widely available, affordable and use
significantly less energy while producing
much more relevant water flow for reef life.