Aquarium Safe How to test Rocks Tutorial

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>> YOUR LINK HERE: ___ http://youtube.com/watch?v=lBW3XovOMaM

Click on ⏬ show more ⏬ for the full video description and links • ||| • I received a lot of rocks from a garden makeover. • I need to test if they are suitable for my aquarium and the fish I want to keep. Therefore I test if they will harden my water. • Testing rock hardness can be done with an easy, simple and safe DIY method at home. • • • Musik by hungastryke: Party •   / kwansahmadani   • • #howto #rocktesting #aquariumsafe

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