[i have a 58 gallon reef tank and i am about to go smaller i am looking to replace the skimmer that i have i am looking for a hob skimmer i want the best that i can do so i will not have to worry about things in a few months thanks all] said:[The Aqua C Remora is a HOB. The Aqua C Urchin is an In-sump skimmer. I really like the Remora and have used two of them on two 29g tanks.
I don't believe any of the Triggersys skimmers are HOB, are they?]