Originally 30 lbs of sand in a 40 breeder. Some has been siphoned out when siphoning out cyano, maybe around five pounds worth? The sand is three months old: it was new when i upgraded the display tank. The system started out as a ten gallon in March, so some parts of the system are 6 months.
It may just be that I can see the cyano better now. It is a different color under the Sols. It is a very dark wine color now and is really obvious. The cyano was disappearing overnight, and reappearing as the day progressed for the last couple of weeks. I'm going to to try to get it siphoned out again today. I may try using airline tubing for the stuff that I'm seeing on the rocks.
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Shelley
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