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hoppycalif · 08-19-2008, 10:08 AM

That black blasting media has sharp edged particles, so it isn't good when you have cory catfish in the tank. When I used it I loved it, but I couldn't keep any cory alive for long. 3M Colorquartz Black is probably a better choice, if you can find it.

08-19-2008, 10:08 AM	#22 (permalink)
hoppycalif Senior Member Join Date: Apr 2005 Location: Sacramento, CA, USA Posts: 5,208 iTrader Ratings: 20 iTrader Positive Rating: 100% Plant Points: 227345	Re: Alternative Black Substrate? That black blasting media has sharp edged particles, so it isn't good when you have cory catfish in the tank. When I used it I loved it, but I couldn't keep any cory alive for long. 3M Colorquartz Black is probably a better choice, if you can find it.