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coral or holey rock

ErnieG

Members
I'm using pool sand in my 20 gallon multifasciatus tank, I would like to know how I could get my ph up to 8? Should I use coral or holey rock? Which one raises and holds the ph high better?
 

ErnieG

Members
Ok, thanks guys I will go with the coral. This take was an Amazon biotope with leaves and driftwood so I think that still affecting the tank.
 
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