- Joined
- Nov 18, 2012
- Messages
- 38,516
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- Location
- Fontana, California
- What state or country do you live in
- California
Could it be precipitation of calcium?Noticed a bunch of sand like grains in the tank I cleaned out yesterday and thought it was from where I transferred them from the main tank. But today there are a bunch more in the new TTM tank. What might they be? They are like sand grains except larger.







