Re: Questions about foam models as safe vivarium decorations
As you may know, for The Rainforest Exhibit, I used High Density Foam from DUNAUSA, Drylok, and acrylic paints (on some areas, Krylon Matte Finish Spray).
The finished results are not only the waterfall feature, but immersed in the water area of the paludarium/vivarium. At the start, the water ph spiked (due to the faux ruins, driftwood, leaf litter, tannin, etc), but after a few weeks and some water treatments, it all neutralized.
Plants are growing and fish have been introduced and are fine.
Let me know if you want more info...