keeping live rock in 100% freshwater tank, reduces nitrates.. did it by accident had no room to keep it but it's just staying in there now.
oldschool mfk thread // + lava rock
https://www.monsterfishkeepers.com/forums/threads/live-rock-in-freshwater.463688/page-3
oldschool mfk thread // + lava rock
https://www.monsterfishkeepers.com/forums/threads/live-rock-in-freshwater.463688/page-3