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Old 02-27-2005, 08:27 PM   #1
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Can I add sand to an "established" tank

I have a 50 gal tank that has been running for just over a month. I have a mixed crushed coral / sand substrate. I am wishing I had only sand. With out taking out the crushed coral due to the amount of work it would be (I think) would I be able to add sand? pros / cons??? What about Old castle or Southdown sand from Home Depot?

-50gal tank
-20gal tall sump / refugium.
-About 15-20 lbs of live rock
-60 lbs (3") of sand.
-2x65w power compact lights
-2x18w power compact in the refug.
-bak pak 2R
-3 LARGE feather dusters all differebt colors
-orange spotted goby
-fire fish
-12 or so hermits
-50-60 nassairus snails
-about 12 turno snails
-emrald crab
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Old 02-27-2005, 10:31 PM   #2
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Adding the sand will be fine. Both the olde castle or southdown are Ok as will any aragonite sand. The problem will be that the larger CC particles will always end up rising to the top layer. If you dont have lots of stuff(LR, inverts or fish) in the tank switch out 20% or so at a time and do the changeover. You will be happier in the long run.

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40lbs livesand(bag from LFS), 30lbs live rock(LR.com)
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Old 02-28-2005, 08:58 AM   #3
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The following article will help guide you in the process of changing out your CC for Sand.

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Old 02-28-2005, 08:24 PM   #4
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I just added more sand I put it on the bottom of my existing stuff and my ammonia and nitrates went nuts bad thing is I have my first group of coral coming in friday and I gotta get the stuff back down. Its nicer in the long run but holy crap this aint good for me right now
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Old 02-28-2005, 10:44 PM   #5
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Better do some water changes, Joemama16341!
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125 gal. reef w sump/refugium & 8-bulb 640w T5's
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Old 03-01-2005, 09:44 PM   #6
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Sounds a bit odd that the ammonia and nitrates would go so crazy especially since you are only adding parts at a time. Are you cycling your tank at the moment? What exactly do you define as "nuts"?

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