rock types

[Hailey]

wow, its been a while since i have been on here! but i have a new question to ask...are there certain types of rocks that you SHOULN'T put in your tank? i want to put flag stone and lava rocks in my tank, but i dont know if they are bad for the fish or something??

 

[itZme]

Hi,
There is a topic pinned at the top of the page with huge list of rocks and if they are recommended for aquarium use.
itZme