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Wanted to make a background for my new(secoundhand) 6x2x2.5
Had a look at a few difrent ways of doing it and ended up using someideas from the diffrent ways
Got some poly from the WIZ for free Thanks Mate
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What do you all think?
![](http://i205.photobucket.com/albums/bb94/arrycridle/11.jpg)
Step 1 cut poly to size of tank
cut random picecs of poly to make rock shapes and glue on top of each outher with a small blob of silicone
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![](http://i205.photobucket.com/albums/bb94/arrycridle/12.jpg)
Step 2 go over all the edges with expanding foam The stuff that comes in a preasure pack
Spray random foam over back ground to make outher features
![](http://i205.photobucket.com/albums/bb94/arrycridle/10.jpg)
Step3 melt away poly to make caves note spray foam will not melt
smooth down foam with a wood rasp/file
Then when you are happy with the shape cut into sections to fit in tank openings
![](http://i205.photobucket.com/albums/bb94/arrycridle/9.jpg)
Step4 render all over with premix cream morta
![](http://i205.photobucket.com/albums/bb94/arrycridle/7.jpg)
Step 5 add some colour to next coat (cement Oxide) and do some more use drifrent colours to get the shade you want i only used two
Black & sand stone all done using a brush
![](http://i205.photobucket.com/albums/bb94/arrycridle/6.jpg)
![](http://i205.photobucket.com/albums/bb94/arrycridle/4.jpg)
Step 6 seal with pond sealer i sprayed it but you can also brush it on
![](http://i205.photobucket.com/albums/bb94/arrycridle/1.jpg)
Step 7 Silicone to back of tank
render up the joins
Seal the joins with the sealer and a brush
Instr on sealer say leave for 7 days before filling with water
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HAVE FUN
Regards Cobby