11-03-2010, 09:41 AM
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The chalk I use is "dustless". While there could be some sort of bonding agent, I haven't had any problems...
I'm assuming it's something as harmless as gelatin if so.
The 5% could also be Magnesium, since chalk is calcium and magnesium....
I've used chalk for several weeks now with no ill affects, and the snails look about the same. (they weren't too bad looking).
The chalk dissolves slowly- try adding a half a stick, and when it's gone add another one. I added limestone to raise the ph to 7.5- so far it's holding.
The chalk also stopped dissolving and is just sitting in the same place. Perhaps the snails will eat it.
Also, I have an update.
My fish have been cruising around at the surface, so I'm pretty sure my oxygen content is low.
I added a filter (but removed all the media) to add some water movement.
I raised the water level up to the filter so there won't be any splashing to drive out CO2.
Last edited by redchigh; 11-03-2010 at 09:44 AM..