has any one ever used lava rock in there brac tanks. i went camping in july anb brought back some lava rock and i have had it in my GSP 29 g sg.010 my nitrates have droped to nill even before water changes. om praising my oregon lave rock for absorbing nitrates and there is no rust on them so its pure. my GSP has a perfect white belly durring the day so i want to know if any one else has tried lava rock
oregon lava rock
- Thread starter festerfish
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