<a href=showthread.php?s=&postid=15589698#post15589698 target=_blank>Originally posted</a> by James77
There is nothing else that can be heard on my tank- it is literally silent. Its not "noisy", but you can definitely hear it. I could not get used to it since it was constantly ramping up and down or pulsing.
If you have any other noisy equopment- fans, pumps, skimmers, overflorw- the vortech will blend right in. If you have a silent or near silent display, expect to hear the vortech.