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Old 08-23-2011, 12:15 AM   #1
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Exclamation Cycling question

I have successfully set up a 150 gallon with wet/dry (synthetic filter w/bioballs). Only RO/DI water used. 120 lbs base rock and about 15 lbs of live rock.

As prescribed, I introduced 2 uncooked shrimp in to the tank for about 6 days until they looked like they were about to explode. They smelled AWFUL when I removed them.

After removing the shrimp, I tested the Ammonia levels and was shocked to see my ammonia level was only 1.0. I couldn't believe this was so low so I took a water sample to my LFS and they received the same result.

2 weeks later my Ammonia was at .5 and 0ppm Nitrite, 0ppm Nitrate

At the 4 week mark, my ammonia level is now at 0ppm, nitrite is at 0ppm and Nitrate is at 10ppm.

I have absolutely ZERO algae growth of any kind.

My pH is about 8.2 and water temp is about 78-80 degrees.

Was this even a cycle?? If so, do I have enough "good" bacteria to sustain a small bio-load of 3 or 4 fish or so?

I plan of completing a 50% water change to cut the nitrate's.

Ideas?? Did I do something wrong? Advice please!!

Thanks in advance!!!

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Old 08-23-2011, 12:07 PM   #2
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Anyone?? Ideas???

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Old 08-23-2011, 12:11 PM   #3
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In that size tank maybe the amount of shrimp want enought o get a good solid ammonia source. But you alos have the live rock too sonot entirely sure why you only got a small spike. Also, I think most people who use the shrimp method leave it to rot until it actually disengrates to almost nothing. I havent used the shrimp method, I've always dosed pure ammonia so I can totally control the ammonia going in. I went up to 4ppm so that the bacteria load would be better. You most likely have enough bacteria for some fish, but not sure how many...

Sorry i couldnt be of more help....
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.
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