I ran a PanWorld 200 which is the same as the Blueline 70. It's a rock solid pump. Fan cooled so not a lot of heat added to the water but it is certainly not silent (noise = sound?). 100HD is a massive pump, and will set you back 290 watts; so unless you are planning a really huge tank, it may be overkill. As comparison, I run the PanWorld 150/Blueline 55 on my 265.