The tank, all full of life, happy, healthy. My duckweed factory.
![IMG_20231118_200404371 (1).jpg IMG_20231118_200404371 (1).jpg](/proxy.php?image=https%3A%2F%2Fwww.fishlore.com%2Faquariumfishforum%2Fdata%2Fattachments%2F873%2F873603-183481e7045ad747eeecc5ed1ba15a09.jpg&hash=9a540546472c30e7a0609aaa04219940)
That was a wile ago. Then yesterday tragedy struck.
![IMG_20240227_182125966_HDR.jpg IMG_20240227_182125966_HDR.jpg](/proxy.php?image=https%3A%2F%2Fwww.fishlore.com%2Faquariumfishforum%2Fdata%2Fattachments%2F873%2F873604-e670e15a44d73bb236cc175d5f4bb799.jpg&hash=02fb4e7fe9ca2a7ab4489e2cfae31749)
This is my oldest continuously running tank now with one, maybe two neocaradina shrimp and a snail.
The background is lava rock, substrate is five-year-old seachem (maybe) planted tank substrate and the hardscape is some kind of rock from the petcosmart.
So here is the question: I now have a fairly empty tank, can I turn it salty for a small nem tank?
I'd pull the substrate and could swap out the hardscape for reef rock. My real concern is what has the lava rock absorbed over the years of tap water and will it be problematic?
![IMG_20231118_200404371 (1).jpg IMG_20231118_200404371 (1).jpg](/proxy.php?image=https%3A%2F%2Fwww.fishlore.com%2Faquariumfishforum%2Fdata%2Fattachments%2F873%2F873603-183481e7045ad747eeecc5ed1ba15a09.jpg&hash=9a540546472c30e7a0609aaa04219940)
That was a wile ago. Then yesterday tragedy struck.
![IMG_20240227_182125966_HDR.jpg IMG_20240227_182125966_HDR.jpg](/proxy.php?image=https%3A%2F%2Fwww.fishlore.com%2Faquariumfishforum%2Fdata%2Fattachments%2F873%2F873604-e670e15a44d73bb236cc175d5f4bb799.jpg&hash=02fb4e7fe9ca2a7ab4489e2cfae31749)
This is my oldest continuously running tank now with one, maybe two neocaradina shrimp and a snail.
The background is lava rock, substrate is five-year-old seachem (maybe) planted tank substrate and the hardscape is some kind of rock from the petcosmart.
So here is the question: I now have a fairly empty tank, can I turn it salty for a small nem tank?
I'd pull the substrate and could swap out the hardscape for reef rock. My real concern is what has the lava rock absorbed over the years of tap water and will it be problematic?