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Old 12-16-2013, 01:52 PM   #1
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crushed coral

Is crushed coral a decent substrate for my 90 gallon tank? I had about 100 pounds of it that came with the tank and don't want it to go to waste. Will the bacteria that lives in live sand inhabit crushed coral also?
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Old 12-16-2013, 02:20 PM   #2
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You would be better off with a sand substrate. CC is infamous for trapping waste and causing high nitrates.
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Old 12-16-2013, 02:29 PM   #3
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How much sand would I need? And could I mix dry sand with live sand?
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Old 12-16-2013, 03:17 PM   #4
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No matter what, sand will become "live" after you cycle your tank. Live only refers to there being the beneficial bacteria living in it and the rock that makes the nitrate cycle, aka consuming ammonia and nitrite to produce nitrate...and making sure your livestock aren't poisoned to death. I would suggest the same poundage of sand as what came into the tank in crushed coral. If you need a money saver, some have used pool filter sand successfully in their aquariums.
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Old 12-16-2013, 03:19 PM   #5
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I may do the pfs mixed with a couple of 20 pound bags of live sand
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Old 12-16-2013, 03:20 PM   #6
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Def something you can do. Just keep in mind that it is only sand and bacteria they are selling in those bags. You can make the bacteria on your own w/o issue.
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Old 12-16-2013, 03:25 PM   #7
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I have 55 pounds of live rock split up in 2 20 gallon tanks. I will probably move that into my 90 along with 30 or 40 pounds of dry rock. Is the bacteria on the live rock same as what lives in the sand?
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Old 12-16-2013, 03:26 PM   #8
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It is what you are looking for, yes.
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Old 12-16-2013, 05:55 PM   #9
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Is there anything I need to do to prepare the pfs for the tank or do I just put it in?
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Old 12-16-2013, 06:00 PM   #10
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I'd rinse it heavily to get any dust out of there to assist with cloudiness.
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