Lava Rocks?

[cfmurray4]

Are lava rocks ok to use for my cichlids?

 

[Malawi MaD]

Yep there fine

 

[Jamie24]

Yep there fine

Are lava rocks suitable for the average tropical aquarium ?? seen some in a LFS last month & really liked the shape but they felt of a crumbly texture & when I read "Lava Rock" on the bucket label I suddenly remembered people saying they alter the waters PH & so on. Decided to put them back & get a Rainbow rock type instead.

 

[Sammyb]

Lava rock shouldnt change your ph, its normally crumbally but give it a wash and all that crap will come off