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KLN 12-30-2003 09:57 AM

dissolving rock
 
In my second tank, which is in early fishless cycling phase, I put a rock I thought had been in an aquarium in the past. Then the rock started to dissolve. I took it out, but some of it was aleady dissolved in the tank. Could that have put something unhealthy in the water? How should I check for it?

reefrunner69 12-30-2003 10:37 AM

Do you know what kind of rock it was? Could it have been a very dried lime rock that just started to erode with the water and waterflow?

If your not certain what kind of rock it was, I would do a large, if not total water change and run GAC.

KLN 12-30-2003 10:40 AM

No idea what kind of rock. It was off-white, and is white now. It dissolved rapidly, leaving sediment on the sand in the tank, and a lot of cloudy matter when I removed it. If it was limestone, would that be harmful to fish?

reefrunner69 12-30-2003 10:47 AM

Quote:

If it was limestone, would that be harmful to fish?
No, LR is pretty much a limestone rock. That is what it sounds like to me, the limestone was dried and brittle and started to erode when introduced to water.

FWIW, it's not a good idea to add things to your tank if you are uncertain of their origins.


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