Aquarium sand or play sand? - Page 6 - Tropical Fish Keeping - Aquarium fish care and resources
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post #51 of 51 Old 01-19-2013, 11:42 AM
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Quote:
Originally Posted by JDM View Post
Why the heck would a "silica" free sand make any difference to sand boxes and the like, I get why you wouldn't use silica free in a FW tank.

...
Jeff.
I think the concern was it is calcium carbonate which would raise the pH and could become hard.

my .02

maintain Fw and marine system with a strong emphasis on balanced, stabilized system that as much as possible are self substaning.

have maintained FW systems for up to 9 years with descendants from original fish and marine aquariums for up to 8 years.

With no water changes, untreated tap water, inexpensive lighting by first starting the tank with live plants (FW) or macro algae( marine)

see: http://www.tropicalfishkeeping.com/a...-build-295530/
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