07-23-2005, 01:04 PM
Join Date: Sep 2004
Location: Geneva, Switzerland
There is always a loss of pressure from the moment the water leaves any cannister filter, no matter the make.
The amount of pressure loss depends on the length of the hose back to the aquarium, how high the water needs to be pumped back to the aquarium, how many bends and right angles the water has to travel through to get back to the aquarium and the travel through any other equipment attached on the return flow from the cannister to the aquarium.
The loss of pressure from a single Hydor inline heater is not going to be significant. Some people have both a Hydor *and* a CO2 reactor in line on the output of their cannister.
So I wouldn't worry about it.
Was he/she by any chance trying to sell you a different cannister that would work *better* with the Hydor?