DIY LR with foam???

1990jpyj

Member
so i read somewhere on the internet that ppl are using spray foam mixed with some LR to make there aquascape. it that even possible to do that? cuz if it is i might be able to save me some big money later on down the road. how does it work? does it take place of needing a large amount of LR. like lates say im doing a:
125g tank
20#'s LR
the rest foam-
is that how it works? wouldnt the foam be yellow, or can you paint it/dye it?
thanks
 
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