My first pair of Apistogramma!

[Sky_Walker]

oh ok, i shall see how it goes for the peat moss. which kind of lava rock you bought? those that you choose yourself at the lfs or in a pack? mine is actually meant for filter usage haha.

brought them in pack ANS brand. yup is for filter use. still no effect on dropping ph lol...

[altezza_87]

I think we got the same one. but how come its not working for you. weird..

[stormhawk]

Depending on which type of lava rock you are using, the effect on pH may vary. I don't think they'll bring down the pH as fast as peat moss can. With peat, all you need is to pack them into a smaller filter bag, leave it in the tank and soon it'll cause the water to get a brownish tinge.

By the way altezza, congratulations on the beautiful pair.

[Sky_Walker]

ya pretty slow for lava rock..for 2 days notting change much.. peat do better, have try...

[genes]

Lava rock can lower pH? I thought they are suppose to be inert? neutral? Does not alter pH? I think its stated too on the box that they are inert.

[stormhawk]

Some types of lava rock have an effect on pH, if information on the web is anything to go by. In my case, nothing beats peat or ketapang leaves when it comes to lowering pH.