Petrified Wood Rock

[Noahs ark6]

Hi


Was wondering if any one has had any experience with Petrified Wood Rock. I'm getting a 90 ltr soon, and it's either this rock or Mini Landscaping Rock. Reccomendations and opinions would be appreciated
Thanks

 

[fish killa]

It makes your gh go up a bit . I had some in my tank for a bit nothing ever died but the water did get harder

 

[Ps3Steveo]

MLR all the way mate.