Cutting skimmer cup to reduce height

Nikolausreef

New Member
View Badges
Joined
Feb 7, 2026
Messages
11
Reaction score
2
Location
United States
What state or country do you live in
Connecticut
Rating - 0%
0   0   0
I'm setting up an in wall tank and my reef octopus just barely doesn't fit height wise into the sump area. Is there any reason I can't just cut the skimmer cup top an inch and a half as long as I keep the difference between the inner and outer acrylic the same?

I just want to make sure I not missing something before I do it.
 
I would think you skimmate would not be the same companies put alot of R&D into making the height of the cup the width of the neck and size of the pump etc. just right. There’s a chance it could work but I would not do it on a skimmer your using right now find something on here or CL maybe facebook marketplace and get a cheap an used bubble magus or something so if you ruin it then atleast it’s not he one you own and use .
 
Yeah I figured it was worth a try before purchasing another one but your probably right. Your hesitation made me relook at the stand and I was able to cut away some of the sump ceiling area and move a 2*4 out of the way and it just fits now. Thanks
 

TOP 10 Trending Threads

HOW IMPORTANT ARE FISH TO MAKING A REEF TANK FEEL COMPLETE?

  • Essential! A reef needs fish movement and personality

    Votes: 25 64.1%
  • Very important, but one or two fish may be enough

    Votes: 4 10.3%
  • Optional... a coral-only reef can feel completely finished

    Votes: 2 5.1%
  • I actually prefer a coral-and-invertebrate-only system

    Votes: 0 0.0%
  • It depends on the tank’s size, style, or purpose

    Votes: 6 15.4%
  • I’ve kept a fishless reef (details in the comments)

    Votes: 1 2.6%
  • Well...it's complicated... (answer in the comments)

    Votes: 1 2.6%
Back
Top
Home
Post thread…
Market
What's new