The Planted Tank Forum - View Single Post - el gordo 6 gallon fluval edge journal
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post #13 of (permalink) Old 01-27-2010, 06:10 PM Thread Starter
Fat Guy
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Join Date: Nov 2003
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the larger rock was the culprit. not limestone, but had some deposits on the side that needed to be scrubbed off. they were bubbling under the vinegar test, but once I removed the deposits, everything seemed to be stable. The rock is gneiss and slate I believe. more on the gneiss side. But I was able to dig a little clay out of it when cleaning. anyway, a huge pain to reaquascape
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