Quote:
Originally Posted by Kazalla
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
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Yep. Any sandbed without critters moving it around could harden IMO. Anyway I get all of mine from Indo Pacific Sea Farms in Hawaii. To me its the best place to get the right specimens for your tank: IPSF.com just orderded from them last week to replace dieoff from my own Dino outbreak.