I also have that hardened substrate but only in my 6 gallon tank (running since 2007, never had a dino outbreak). I've read that the excretions (low pH) of substrate living organisms can dissolve substrate consisting of calcium and magnesium. After that the dissolved calcium and magnesium begin to grow as crystals in the substrate that leads to the hardened substrate we have. Do the shops in the US/Canada sell so called "critterpacks"(containing substrate living creatures) to prevent that hardening?
Sincerely, Dennis
Last edited by Kazalla; 11/03/2015 at 10:45 AM.
|