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Old 06-09-2005, 01:54 PM   #1
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Sand vs. Crushed Coral

To all,

Like so many things in my life, I feel like I'm a day late and a dollar short.

This leads into my next question. My LFS sold me a bag of crushed coral for my substate, which is now sitting at the bottom of my cycled tank.

I get the impression that a DSB is the preferred substrate.

So, before I add all my new base rock and stuff, would it be advisable to remove the CC and replace it with a DSB?



Thx,

Mike
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Old 06-09-2005, 02:05 PM   #2
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To be honest... I would get rid of the CC. Have you added anything at all? Fish? If I were you... I would start over with a DSB of aragonite sand. Would save TONS of headaches later on, especially if all you have is CC and water.
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Old 06-09-2005, 02:08 PM   #3
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Oh how i wish i had started with sand.. I got the crushed coral for free, looks good and all that but i would prefered sand. To bad the sand you are going to have to buy is about 20 bucks per 20 lbs, unless you were to find the correct playsand.
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Old 06-09-2005, 02:08 PM   #4
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All that's in the tank is the CC and some lame decorations that I _thought_ were cool before I *knew* enough to know WHAT was cool <

Mike
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Old 06-09-2005, 02:10 PM   #5
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Quote:
Originally Posted by RLG2182
I would get rid of the CC.
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Old 06-09-2005, 02:12 PM   #6
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So I take it that my local HD or garden shop may have the argonite typre of approved sand? And i saw on some website that my tank 48X24X24 would need 250#s of sand for a 4" layer?

Mike
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120 g FOWLR, Pro Clear 200 19 gal. sump (bio balls removed), 50# Walt Smith FiJi LR, 150# reefersrock base, 300# DSB, Iwaki MD 20 return, (2) Rio 600s, (2) Hagen 802s, Amiracle Quad II skimmer, (2) Coralife 4 X 65s, 2 Lebo moonlights, (2) 120 mm vent. fans,

(2) Perc. Clowns, (1) Yellow Tang, (1) cleaner shrimp, (2) Henis, pending: Foxace Lo, Flame Angel, blue legs, scarlets, 4 emerald crabs, nassarius snails, 50 mexican turbos, (1) good bankruptcy attorney when this hobby blows out of control!
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Old 06-09-2005, 02:19 PM   #7
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Actually it would take about 264 lbs of sand for a 4 inch bed.

Check the threads about playsand and which brand is cool to get. If all else fails do the vinegar test.

I have yet to find any usefull sand in orange county
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Old 06-09-2005, 02:27 PM   #8
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what's the vinegar test? And will I have to drain the tank to put it in (just shoot me now)..

Mike
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120 g FOWLR, Pro Clear 200 19 gal. sump (bio balls removed), 50# Walt Smith FiJi LR, 150# reefersrock base, 300# DSB, Iwaki MD 20 return, (2) Rio 600s, (2) Hagen 802s, Amiracle Quad II skimmer, (2) Coralife 4 X 65s, 2 Lebo moonlights, (2) 120 mm vent. fans,

(2) Perc. Clowns, (1) Yellow Tang, (1) cleaner shrimp, (2) Henis, pending: Foxace Lo, Flame Angel, blue legs, scarlets, 4 emerald crabs, nassarius snails, 50 mexican turbos, (1) good bankruptcy attorney when this hobby blows out of control!
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Old 06-09-2005, 02:41 PM   #9
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vinegar test.... take a small sample of sand in a little container (i.e. a shot glass or a test tube or a small bowl) and add vinegar. if it fizzes then it is argonite sand and is appropriate for use. if it doesnt fizz then it is most likely a silica based sand, and while not bad for an aquarium, it wont give you any buffering capabilites.

you shouldnt have to drain the tank to add sand. you may however want to lower the level a bit. all that free space between the coral is going to be filled with sand when you replace the CC and the water will be displaced. also, i dont know how deep your CC is, but if you are adding sand for a DSB, then you are most likely going to be adding more sand then the CC you are taking out... bottom line is take some of the water out, but you dont have to drain the entire tank.

~mike
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Old 06-09-2005, 02:46 PM   #10
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Thanks for the quick answers. I've got a layer of CC just thick enough to cover the bottom (1/2"?).

Makes sense that 260+ lbs of sand will displace a bit of water. Maybe that's a good time to do a partail water change.

Now onto the quest for cheap snad.....

Mike
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120 g FOWLR, Pro Clear 200 19 gal. sump (bio balls removed), 50# Walt Smith FiJi LR, 150# reefersrock base, 300# DSB, Iwaki MD 20 return, (2) Rio 600s, (2) Hagen 802s, Amiracle Quad II skimmer, (2) Coralife 4 X 65s, 2 Lebo moonlights, (2) 120 mm vent. fans,

(2) Perc. Clowns, (1) Yellow Tang, (1) cleaner shrimp, (2) Henis, pending: Foxace Lo, Flame Angel, blue legs, scarlets, 4 emerald crabs, nassarius snails, 50 mexican turbos, (1) good bankruptcy attorney when this hobby blows out of control!
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