Samgoody Posted July 23, 2008 Report Share Posted July 23, 2008 Hi guys: I am going to set up a 70 gal African Cichlid tank but not sure if I should use crush coral or just pure black gravel. I have used crush coral before but they turned little greenish once algae appeared in the tank. I just wonder if pure black gravel would look good or not with mostly lava rocks stacking at the back of the tank and also black background. Does anyone know where I can buy reasonably cheap bulk black gravel in Calgary? Sam Quote Link to comment Share on other sites More sharing options...
jvision Posted July 23, 2008 Report Share Posted July 23, 2008 I had a hard time finding black sand, here in Edmonton. Any sandblasting company will have black copper slag, but it can be sharp and may rip apart the cichlids' gills. I ended up ordering a bunch at Nature's Corner and Henry gave me a pretty sweet deal. Quote Link to comment Share on other sites More sharing options...
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