Lava rock .. Good or Bad ??

[leannaby]

Hi looking for info on lava rock.. I have some in my tank but have read different things on it..

 

[Camescu]

I have some in my shrimp tank. It's absolutely fine and hasn't altered any parameters.

 

[Luananeko]

From my experimentation lava rock does appear help keep nitrates low between water changes... Once it's fully seeded with bacteria it works similar to how live rock does in saltwater tanks.

 

[leannaby]

Thank you. Good to know