Do you know if it's safe to use these rocks in a freshwater aquarium with Tetras & Amazon plants, ph 6.6-6.8:
1. Mexican Driftwood Rock: http://jjbrock.com/images/mexican driftwood.jpg
2. Peridot Rock: http://www.pikespeakrock.com/catalog/media/PERIDOT-Lrg.jpg
What is the best method to test a rock if it's safe or not for fish & plants?
1. Mexican Driftwood Rock: http://jjbrock.com/images/mexican driftwood.jpg
2. Peridot Rock: http://www.pikespeakrock.com/catalog/media/PERIDOT-Lrg.jpg
What is the best method to test a rock if it's safe or not for fish & plants?
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