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Old 01-02-2013, 04:53 PM   #1
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substrate change

Hello all.

I am considering doing a substrate change from crushed coral to caribsea black sand. My tank is 20 gallons tall, 2 clowns, frogspawn, toadstool leather, green mushroom, and last but not least my bubble tip nem. Any recommendations for this massive undertaking? Can I somehow do it with the critters and liverock still in the tank? Thanks
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Old 01-02-2013, 05:47 PM   #2
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You have to empty the tank so you would need to take all the rocks and livestock out first then remove and replace the sand.
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Old 01-02-2013, 06:35 PM   #3
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What if I just shut off the powerheads and carefully scooped it out and replaced it?
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Old 01-02-2013, 06:40 PM   #4
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I would be afraid of a nutrient spike, stirring up the cc bed like that. I would use a vacuum and vacuum out a little bit at a time with each water change till it's all gone, then replace with thoroughly rinsed sand.
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Old 01-04-2013, 01:55 AM   #5
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Quote:
Originally Posted by mr_X View Post
I would be afraid of a nutrient spike, stirring up the cc bed like that. I would use a vacuum and vacuum out a little bit at a time with each water change till it's all gone, then replace with thoroughly rinsed sand.
+1 on this id definately be concerned of disturbing the sandbed i had a 55g set up for 3 years once and decided the sand could use a good stirring my nitrate spiked over 100 i lost alot of coral and ended up with hair algae took me several waterchanges and a good 3 months to get the tank back to normal not fun
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Old 01-04-2013, 02:00 AM   #6
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I would be afraid of a nutrient spike, stirring up the cc bed like that. I would use a vacuum and vacuum out a little bit at a time with each water change till it's all gone, then replace with thoroughly rinsed sand.
This is the way to do it
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Old 01-04-2013, 05:29 PM   #7
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Well right now I have just enough sand/cc to cover the glass. Less than an inch deap. Do you think it could have a lot of nutrients in it? I thoroughly clean it each water change.
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Old 01-04-2013, 05:40 PM   #8
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You never know... there always could be some lurking around. I would take your time on it
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Old 01-04-2013, 06:38 PM   #9
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Thank you all for the advice. I guess I will just have to take my time with it. D: haha
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Old 01-05-2013, 06:19 PM   #10
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Finally done.

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