Ok I have a SKIMZ 143 in sump skimmer on my 55g, but I am setting up a new 180g. I have a Trigger 36s sump. I obviously need to upgrade skimmers but only have about 12" by 7" of space in the first sump section after the filter sock holder takes its space. I can not find anything reasonably priced that will fit and have looked at some external skimmers because of that. But I am not a plumping/electrical wiz and would like to know, is there a difference between the external and internal as far as performance wise and are the external ones hard to get plumbed and set up? In internal one was just drop in and plug cord in.
I got sticker shock looking at the prices of the things. ($380-$680)
Any help is appreciated.