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Old 12-29-2004, 10:03 PM   #1
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Just when I thought was starting to get this hobby figured out it throws me for a loop.

After changing my substrate I started feeding my 20 gallon with 30 lbs LR to re-cycle. After 5 days of feeding ammonia and nitrites were 0 and nitrates climbed to 10. I soon added a remora c and lights and then two days ago I added 2 juvenile false percs. This morning I found them hovering on the bottom gasping with fins clamped. My ammonia tested .25 or less but I'm pretty sure that it was enough to effect these tiny fish. I transferred the fish to a QT and now have plans to re-re-cycle my tank.

What method would you recommend to re-obtain a strong bio filtration system? Should I run my protein skimmer during this period? Should I just dump out my water and throw away my tank... just joking. I'm just angry that I have a nice tank with hundreds of dollars worth of equipment stocked with only a few measly crabs.

sorry its so long

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Old 12-29-2004, 10:27 PM   #2
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I wonder if the tank did not fully re-cycle. Did you ever get an ammonia/nitrite spike after the changes?

Running the skimmer won't hurt anything, so I say leave it on. At worst it'll remove some trace elements, but nothing to slow down a cycle.

Sorry to hear about the fish... hope they make it!

Marine Tank: Oceanic 58 Gallon RR * Established October 2004
Planted Tank: Oceanic 58 Gallon * Established September 2005
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Old 12-29-2004, 10:38 PM   #3
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i fed the tank to try to get a spike and never did...thats why i assumed that it needed no recycling. If i cycling the tank with shrimp won't the skimmer remove waste before it is broken down into ammonia?
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Old 12-29-2004, 11:27 PM   #4
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the skimmer might slow it down a bit
30gal / 2: maxijet 600s / 150w heater / CPR Bak Pak2 (maxijet 1200)/FOWLR

30lbs base rock
6lbs Brazilian LR
35lbs sand (20lbs of lfs ls i think it cycled my tank faster)

3 blueleg hermits
4 turbo snails
royal gramma
gold stripped maroon clown
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Old 12-29-2004, 11:53 PM   #5
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you need damsels in there . what were you feeding before? and your substrat what kind? it takes a month to cycle in general.
75gal oceanic with 20 gal refugium, 750g.p.h.pump for HSA-250 skimmer, EHEIM-1250 PUMP FOR 200gph mincal. calcium reactor with 20lb co2 tank and co2 regulator with solenoid, 800G.P.H. overflow box pump and filter, aquaclearl 500 power filter for circulation and carbon use only,wave maker 900, 3x300g.p.h., pinpoint ph controller, delta star 1/3hp chiller.with 600g.p.h. pump, spectrapure automatic liquid level controller for the addition of ro.di.top off water, kent marine 4 stage delux maxxima 35g.p.d. hi-s, t.d.s. monitor, flush kit, 170lbs live rock, 5in sand bed, acropora's LG green,pink, and med purple, LG montipora encrusting purple, LG porities coral yellow, LG ruffled ridge coral, LG starburst coral green, green hairy mushrooms 100+, blue mushrooms, red mush, fluorescent green mush,green striped mush, bubble coral, LG finger leather and 2in baby, green ricordia mush, in refugium halimeda plant, caulerpa, and lot's of bug's. 1 purple tang, male and female percular clown's, 1 yellow wrasse
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Old 12-30-2004, 02:40 AM   #6
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No need to put any damsels in the tank. Just add a couple of cocktail shrimps in the tank and let it cycle. My tank has an amonia and nitrite spike when i added 45lbs fiji LR. I put a cocktail shrimp in the tank and the next day the amonia, nitrite went back down close to 0 . I got this cycling method from other members on here and believe me. It works!
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Old 12-30-2004, 09:39 AM   #7
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I would shut off the skimmer until after the cycle is complete.
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Old 12-30-2004, 10:04 AM   #8
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I would run the skimmer after adding new substrate, IMO running the skimmer will not effect the cycle. I ran my skimmer on both my tanks during the cycle and it pulled crap from the water... Use the shrimp method, No damsels unless you want to keep those mean little fish.
If your tank was cycled before there should be bacteria there to get a quick cycle after adding the shrimp.
9/02-125 REEF, 125 lbs LR,LS 4x160 VHO, Reef Devil /Sump, Fuge
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Old 12-30-2004, 07:17 PM   #9
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ok...so i transferred the fish to the QT tank and they're doing fine. We tested ammonia today just to see and it turns out it is .25 ppm! The same if not more as my tank but it doesn't seem to have effected them yet. Also another development: I got a new refractometer today and my specific gravity tested to be 1.030 while my hydrmeter was testing at 1.024. Could the high salinity have attributed to their stress?
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Old 12-30-2004, 08:02 PM   #10
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I am getting my refractometer via the internet soon. I am really hoping I won't be shocked by what I see either. My tank is always at 1.024, according to my hydrometer.....

Alex n Mary

150 gallon, 30g fuge/sump, 4.5 watt/gal VHO Lighting, 4" sand bed, 290 lbs LR, CDX-3 Nitrate/Phosphate filter

Female Naso "Isabell" or "Izzy", Emperor Angelfish, Flame Angel, Red Sea Sailfin tang "Bambi", Maroon Clown "Nani", 5 Chromis, 1 Aglae Blenny "Bengi" , Yellow Watchman Goby, pr of Banggai Cardinals, Lyretail Anthia, Six Line Wrasse

1 cleaner shrimp, Coral Banded Shrimp, lettuce nudibranch, 1 sand sifter stars, 1 tiny red brittle star "red", 1 tiny red and white banded serpent star, 2 tiny banded serpent stars, small orange Linkia starfish, assorted hermits and snails. Corals: star polyps, A ton of different types of mushrooms, yellow zooanthids, brown-orangish and light blue paly's, orange ricordia.

90g RR, W/D, 120 lb's LR SF eel, pygmy angel, pr sebae clownfish, 4 chromis. Star Polyps & Mushrooms
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