polystyerene?

mr. luke

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can i use this? un treated, as in tv packaging stuff?
i want to create a layout in a tall tank but i cant stack rocks as front to back it is only about 15cm :(
the plan is to silacone some mashed up pagoda stone to it :p
 

Ed Seeley

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You could also get some expanding foam to use as well as siliconing smaller bits of rock together to achieve an effect.
 

mr. luke

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thanks :)
would expanding foam be ok untreated though?
i dont want to be messing around too much :p
 

Ed Seeley

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mr. luke said:
thanks :)
would expanding foam be ok untreated though?
i dont want to be messing around too much :p

There was some stuff sold specifically for aquariums that was fine but I haven't seen it recently. That was what was used.
 
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