![Tried out a weird idea I had with my old tank, it's a cave made with spray- foam and lava rock. On top is a bunch of moss I literally just scrapped off Tried out a weird idea I had with my old tank, it's a cave made with spray- foam and lava rock. On top is a bunch of moss I literally just scrapped off](https://preview.redd.it/tried-out-a-weird-idea-i-had-with-my-old-tank-its-a-cave-v0-y45968wucx6a1.jpg?width=640&crop=smart&auto=webp&s=3103c090e8135004546b6b59cdcf0e15024f1fe6)
Tried out a weird idea I had with my old tank, it's a cave made with spray- foam and lava rock. On top is a bunch of moss I literally just scrapped off
![will expanding foam +drylok be enough to contain a small “pond” in my tank? see comments : r/Vivarium will expanding foam +drylok be enough to contain a small “pond” in my tank? see comments : r/Vivarium](https://i.redd.it/ab4traiprp891.jpg)
will expanding foam +drylok be enough to contain a small “pond” in my tank? see comments : r/Vivarium
![Tried out a weird idea I had with my old tank, it's a cave made with spray- foam and lava rock. On top is a bunch of moss I literally just scrapped off Tried out a weird idea I had with my old tank, it's a cave made with spray- foam and lava rock. On top is a bunch of moss I literally just scrapped off](https://preview.redd.it/tried-out-a-weird-idea-i-had-with-my-old-tank-its-a-cave-v0-adk0k8wucx6a1.jpg?width=3435&format=pjpg&auto=webp&s=48617eed178d474e1d0cc94e2852afaced7177a3)
Tried out a weird idea I had with my old tank, it's a cave made with spray- foam and lava rock. On top is a bunch of moss I literally just scrapped off
![DIY 3D Styrofoam Aquarium Background with DIY Roots - US Native Stream Tank | MonsterFishKeepers.com DIY 3D Styrofoam Aquarium Background with DIY Roots - US Native Stream Tank | MonsterFishKeepers.com](https://www.monsterfishkeepers.com/forums/proxy.php?image=https%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv19%2Ffatboykevin%2FIMG_1810_zpsja8u2am8.jpg&hash=e06d0959ab7dca127915611847b9983a)