Luke Posted April 20, 2017 Report Share Posted April 20, 2017 I have been wondering if the molded brick/stone siding would be ok to use as a back ground in a aquarium. As far as I know its inert and similar to the great stuff foam when it drys. Has anyone ever used it in a tank? Looking for some feed back. Quote Link to comment Share on other sites More sharing options...
ckmullin Posted April 21, 2017 Report Share Posted April 21, 2017 I'd be very cautious. From last I read there are flame retardant chemicals in some. Quote Link to comment Share on other sites More sharing options...
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