Is it possible for a new tank to cycle in a week & 2 days?

iOweYou

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Title says it all.
Im not so sure. First time I've seen it cycled soo fast. Parameters are all on point.
Started date is : 1/12/17
*25g
  • Threw in shrimp on the first day and left it there for 4 days. It was pretty much rotten by the time i picked it up.
  • I have about 10lb dry pukani live rocks
  • 20lb Live sand
  • Skimmer
  • A year old Media Filter from my other reef tank to seed. No old substrate was used.
  • A newly bought 8x1 plate marinepure
  • & Is curently dosing AquaForest Bio S & Np Pro. 1 drop per day
Anyone have any ideas? Thanks!
 
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Diesel

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What were your test reasons during the first 4 days?
It's possible that it never went true a cycle yet.
 
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iOweYou

iOweYou

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Ammonia sky rocketed up to 8.0ppm for the first couple of days
& went down rapidly, about 3-4days to 0ppm

Nitrite went up to about 4.0-5.0ppm
Nitrite took about the same days from going to 4-5ppm after ammonia cycle to almost 0ppm today

Nitrate raised up to about 40-60ppm and back down, & now is at 5-8ppm today
 

Diesel

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You can ghost feed it with some ammonia to test.
If ammonia will go down within 24 hrs you are cycled
 

alyee5

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Sounds like the live sand and media filter are doing a great job. Do you happen to have any pure ammonia? If it were me I'd dose up to 2ppm and see if the ammonia is processed in less than 24 hours. Also I assume you took multiple reading to ensure testing repeatability?
 
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saltyhog

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My current DT had 60 lbs of TB Saltwater live rock and 100 lbs of dry rock and it cycled in 9 days. Ammonia peaked at 3.0. Nitrites were back to 0.0 at day 9.
 
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iOweYou

iOweYou

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I actually dont have any pure ammonia, but I will ghost feed it and see how it goes. Thanks fellas!
 

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