Leaving space between the Aquascape and Back Glass: Why should you?

BRS

How much space do you leave between the aquascape and back glass?

  • None

    Votes: 63 8.8%
  • Very little

    Votes: 104 14.5%
  • Couple inches

    Votes: 391 54.5%
  • Wide Open

    Votes: 140 19.5%
  • Other (please explain)

    Votes: 20 2.8%

  • Total voters
    718

jakepapp

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I also did a rock wall, with minimal open space on the back. There are lots of large cracks between the rocks and back, but it limited; the many rocks rest against it and other rocks are attached to them with silicone and/or epoxy. I was always advised to keep it open, but I felt I could manage it, and my back glass is blacked out to begin with. I point my return flow back behind the wall to keep some flow, though I wish it was more honestly. Having the rock wall presumably just eats up the flow I put towards it.
When I look along the back from the side I can barely see back there, but it always looks super clean, and fish and serpent stars will always be hanging out back there. It makes for a real SOB to get fish out with such a structure though. I had to get a big hippo tang out, it was kind of a nightmare. When I made the wall I made it in 1ft wide sections such that I could remove as necessary, but since then they have merged as rocks got added and rearranged.
You can see the rock wall from all sides in the pics below, it is almost 6ft long, and ranges in width from 8" to 1" or 2" towards the top. I didn't quite capture the crack behind the wall, but it is minimal and stay pretty dark.
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joseph scott

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I think flow and removing dead spots are both good reasons to keep some space. But I also just prefer it aesthetically. I like seeing the fish swim throughout the entire rock structure. I also like having the other side to look at sometimes. Or at least down from the side.
I this adds so much to how the fish are able to swim, I even mounted a large mirror behind my tank. Now I’m able to see action taking place back there. And no the fish don’t appear to be able to see there reflections, could be the 8” space between the tank and the mirror.
 

clarimore

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Well that depends on your scape.
I have always had the great rock wall. I have a minimalist scape with 3-4" between the rock and the back wall. This allows swimming room for fish and makes detrius removal easier on my bare bottom.
However as the tank grows in corals are encroaching on the back glass. It wont be long before several attatch to the back.
The back is difficult to access now but powerheads keep the area free of detrius for now.
1.5 years aho and now.
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wow that's beautiful
 
BRS

What do you use?

  • Gfo

    Votes: 8 6.0%
  • Carbon

    Votes: 51 38.3%
  • Carbon & GFO

    Votes: 46 34.6%
  • Water changes

    Votes: 76 57.1%
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