Unique 3D aquarium backgrounds - Aquadecor

DIY Aquarium Background - Rock Ledges
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Now fill your tank, you can put the decor in before or after the water. I personally like doing it after I fill it. The water will be very cloudy and the PH will literally sky rocket. It will be off the charts. So don't put anything live in it like plants or fish. It will take a few weeks to get the PH back to normal but it will get there. Be careful about checking the PH because it could still leach off of the cement. Better to be sure so take your time. I recommend doing a water change every 1-3 days. I decorated my aquarium with driftwood and plant and silica sand. Also with black rocks I found in a stream near my house. I boiled them to get the bacteria off. You can test the sand fall and move sand around to where it works.
Dramatic AquaScapes - DIY Aquarium Background - Bob Kyaw in the Community Spotlight
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Makes no difference which route you choose to take in adding an aquarium background, you can be sure that it is money and time well spent. Your fish will definitely appreciate the view, and so will you! • Our aquarium backgrounds fit any size or shape fish tank
Photo provided by FlickrQ. Do I need to trim my aquarium background to fit my tank?
Photo provided by FlickrQ. How long does it take to receive my aquarium background?
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This instructable will show you how to make a cool 3D background that goes inside your aquarium and looks like real rock but only weighs less then a ...In this Instructrable I'm going to advise on how to fit an aquarium background suitable for tropical fish. The pictures throughout are of my own tank which I made 2 years ago and have kept fish (successfully - meaning alive) in for 2 years including 1 crayfish, 2 plecs, 3 red-finned sharks, guppies and tetras (to name a few), prior to moving house and hence tank.First figure out if you want to cover just the back wall of your aquarium or more. Also decide what you want your background to look like. You ...I have been trying to figure out how to make a background that I would like for quite some time. I finally came up with this. I used fluorescent light egg crating, aquarium safe silicone, and a bag of garden river rock from Home Depot. I had to cut the egg crate into 3 pieces to make it fit into the tank because of the glass support across the top middle of the tank. Probably just as well because the egg crating breaks fairly easily and with the weight of one solid piece I am sure I would have broken it before I got it in the tank. The first step is to cut the styrofoam to the size that will cover the back of the aquarium. I put tape down on the garage floor to the dimensions of the tank so I could set up the background there. Plan for the styrofoam to be in 3 pieces. If you don't, the complete structure won't fit into the aquarium (for larger aquariums) because of the cross bar in the middle. It helps if you cut these 3 pieces in a puzzle-like fashion so they'll lock together in the tank. They can be cemented together at that time with the 100% silicone caulking.

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In this video i give you an example on how to build a 3D aquarium background using cement and styrofoam.
This was only an example and not really meant to look that great, but rather something visual to show you on how i build one.
Keep in mind this is not the only way to do it, so do some of hyour own research and find the best method and materials suited for you.
A 3D background can not only be a functional decoration by hiding equipment, it also is visually appealing and what most people would be after. They certainly do help to create a more natural setting for your fish. Building one can not only be cheaper, but you can be assured that it will be the only one of its kind.

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