The Planted Tank Forum - View Single Post - Are these rocks safe for a planted tank?
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Old 02-09-2013, 11:01 AM   #19
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Love the rocks on the top row, and the second starting at the left those 2 pics look like slate that I have. The bottom row looks like petrified wood, I could be wrong but I bought some of those last year. I agree with the vinegar test. And also any rocks I find I boil. I'm always finding nice rocks when I'm out on LI. They do look nice in your tank
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