Thought I cycled it, but was wrong
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Thought I cycled it, but was wrong

This is a discussion on Thought I cycled it, but was wrong within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> Ok so I am working on a ten gallon fish tank, it is moderately planted and coming along nicely. Yesterday I tested the waters ...

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Thought I cycled it, but was wrong
Old 06-25-2011, 09:57 PM   #1
 
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Thought I cycled it, but was wrong

Ok so I am working on a ten gallon fish tank, it is moderately planted and coming along nicely. Yesterday I tested the waters and got a reading of 0 ammonia and 0 nitrites. I have been doing a fishless cycle with shrimp. But the issue is, I left the shrimp in there and (though I'm not sure if I was supposed to do that) then decided to do a PWC the next day. Well I know I should have but I didn't test the waters before I did the water change. I changed about 50 % of the water and removed, throwing away the shrimp.

The issue is that I tested the waters afterward, and now have a reading of .25 Ammonia ppm and .25 Nitrite ppm. I know my tap water has no nitrite and no ammonia, but I'm not sure about the nitrates because I think it read wrong the first time I did it, it came out as 0. So I am going to retest for Nitrates, I always have too high of nitrates in my tank. So my question is, is this normal. Or is something that I did messing it up? Is this just a spike? Should I get another shrimp and continue with cycling?
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Old 06-25-2011, 09:59 PM   #2
 
how long did you leave the shrimp in for?
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Old 06-25-2011, 10:07 PM   #3
 
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Um probably close to three weeks. Though I used some water and waste from the old tank to help it along. I just thought it cycled fast, though I've never done a fishless cycle, much prefer it this way, no losses.
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Old 06-25-2011, 10:48 PM   #4
 
3 weeks is on the short end of the expected cycling process, but with the boost from the other tank certainly not unreasonable.

What other decorations do you have in the tank? What substrate do you have? Wondering if there was enough surface for bacteria to grow on.

Did you do anything else when you changed water? Just water out water in, with some dechlorinator stuff? Is it possible that whatever you used to put water into the tank came into contact with some sort of cleaner?
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Old 06-25-2011, 10:53 PM   #5
 
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The substrate I have is black gravel, about 2-3 mm I think. I also have a plastic tree, that is really tall and reaches out of the water, this will be for my crab when I put her in. I just put water out and in like you said, I don't think it came in contact with anything weird. I used Novaqua to remove the chlorine and add some stress coat to the water.
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Old 06-25-2011, 11:29 PM   #6
 
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Were it me,, I would borrow some filter material and about a half cup of aquarium gravel from your 25 gallon tank to the ten gal.(25 gal is cycled Right?)
You could place the borrowed material in a mesh bag, or section of ladies nylon and leave it in the ten gal for around three weeks.
May not be very attractive temporarily,,, but will speed the cycling process.
Once you have a cycled tank such as your 25 gal, there should be no need for cycling another tank when borrowing filter material and gravel or sand from a cycled tank is available.
Will need to keep the borrowed material(bacteria) fed with either pinch of food each day, or by placing two or three small tetra like fishes to the tank and then adding two or three more at ten day intervals.
Keep an eye on water parameter's after adding fish and perform water changes as necessary.
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Old 06-25-2011, 11:43 PM   #7
 
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So I do need to keep something in it? If so I will probably buy another shrimp, just because it is more predictable and less easy to over dose.
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Old 06-26-2011, 12:24 AM   #8
 
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Quote:
Originally Posted by Andarial View Post
So I do need to keep something in it? If so I will probably buy another shrimp, just because it is more predictable and less easy to over dose.

You can either add a pinch of food each day or every other day as mentioned,or toss in a few ghost shrimp and feed them tiny amount of food until you are ready to place the puffer in the tank.
Puffer will likely gobble up shrimp and or possibly harrass the crab but I have no expierience with crabs.
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Old 06-26-2011, 12:21 PM   #9
 
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Never thought of using ghost shrimp, the crab and puffer seem to get along fine right now. But who knows what will happen later once I move them, I can always move the crab back into the 25 gallon. Cairo though is pretty tolerant for a puffer. I will probably add a few ghost shrimp then, thanks for the advice.

Last edited by Andarial; 06-26-2011 at 12:23 PM..
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