Quote:
Originally Posted by mark
Had the 4-6" DSB for ~3 years, had some cyano when starting but could have been me just starting, using tap water etc, but did clear up. When I moved and dumped the sand, didn't smell much different than my water does now. Really it smelt fine.
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When I moved from my 3yr old 75g up to my 175g I decided to replace the sand because that was the thing to do. After all the livestock was moved and I went to clean out the 75g, the sand (approx 3" deep) had no smell and was as white as could be I wished afterwards that I had kept it