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Nitrogen Cycle Spike


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Neos in Woodstock

Although I read that most shrimp keepers/breeders do so in a shrimp only tank, I wanted to try keeping them with fancy guppies. Unfortunately, as a newbie I think I overfed and now have had a spike in the nitrogen cycle. A few days ago, I cut back on the feeding to the detriment of the newborn guppy fry as they became dinner for the adults, and performed 50% water changes while also adding Seachem Stability. Does anyone have any other suggestions that will lower the ammonia and nitrites/nitrates faster? All seems good at the moment but I have to keep adding Stability to bind the ammonia etc while my sponge filters pick up the difference.

Also, how often should I be rinsing out the sponges in aquarium water? Once a month? Less or more often? They never look very dirty.

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jayc
4 hours ago, Neos in Woodstock said:

how often should I be rinsing out the sponges in aquarium water? Once a month? Less or more often? They never look very dirty.

I would not clean my sponge filters unless they are visibly clogged with dirt. There is no specific timeframe. Just squeeze it clean only when you see a lot of dirt clogging the sponge.

 

4 hours ago, Neos in Woodstock said:

Does anyone have any other suggestions that will lower the ammonia and nitrites/nitrates faster?

Have more than one sponge filter going, in a separate tank. When this happens, you transfer that into the tank.

Or wash the filter from another tank straight into this tank. Yes, it will be dirty, but you seed the tank with millions of beneficial bacteria. The dirt can be removed later once the tank is back under control.

 

4 hours ago, Neos in Woodstock said:

I think I overfed and now have had a spike in the nitrogen cycle.

ammonia spike don't just happen, unless there was so much food uneaten that caused the issue.

Care to share your tank parameters with us to see if we can spot in issue? Temps, pH, TDS, KH are primary parameters that will determine the health of the bacteria. If you have ammonia test kits, take a reading as well, since that is what is being suspected here.

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SudhirR

Keeping shrimps esp the more expensive finicky ones in a grow out tank for fry is going to be very complicated. Dry grow out would need multiple feedings, water changes where as shrimps would need more stable parameters.


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sdlTBfanUK

The guppies will  also enjoy eating shrimplets!

Simon

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Neos in Woodstock

Thanks for all of the info guys. All three of my tanks have neocaridina.

Yes, I know that fry will be lost without multiple feedings daily because the adults will be hungry. And shrimplets will be lost too whenever the parameters are good enough for them to be born. I have excessive plantings (dwarf sagittaria and water wisteria) and water column plants (hornwart, frogbit, and java moss) as well as a lot of rocky (dragon stone) and Malaysian Driftwood crevices for the shrimp and mystery snails to hide.

The parameters yesterday of all three tanks are: TDS-220-225; Temp-71.8-76.3; PH-7.5-7.6, GH-9, and KH-4. Ammonia has been spiking up to 1.0, Nitrite to .25, and in one tank the Nitrates were elevated to 3. 

If I understand correctly, even "bound ammonia and nitrites" (using Seachem Stability) will show up in the API Master Test Kit where as they don't with test strips.

In all three tanks I have multiple (2) sponge filters and in the two larger ones I also have HOB filters running very slowly that came with the aquariums.

 

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jayc
20 hours ago, Neos in Woodstock said:

The parameters yesterday of all three tanks are: TDS-220-225; Temp-71.8-76.3; PH-7.5-7.6, GH-9, and KH-4. Ammonia has been spiking up to 1.0, Nitrite to .25,

Are you saying all 3 tanks are showing readings of ammonia and nitrite?

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Neos in Woodstock

No. Just two of them.

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jayc
13 minutes ago, Neos in Woodstock said:

No. Just two of them.

Have you washed your filter media/sponge from the good tank into the ones having ammonia issues?

If you do that, you will add beneficial bacteria back in.

Your tank parameters look fine for both shrimp and the bacteria, so any bacteria added to the tank now will survive.

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  • 1 month later...

Hi everyone. I've been keeping caridinas and neocaridinas in the same tank for about 2 months now. My neocaridinas were doing very well. Everyone was molting at their own pace and was breeding like crazy. Then I did a stupid thing of leaving raw chicken bits. While my shrimps ate the chicken, 2-3 of them died after that. And now my tank is totally haywire. I've tried doing water changes, tried vacuuming the substrate. My tank parameters are also REALLY REALLY bad. 

Nitrates 40

Nitrite 1

Gh >7

Kh 0

PH 6.8

CL 0

CO2 <15

My ammonia is <0.02ppm

My tank contents are aragonite sand, black active substrate(in a glass container), coral chips, coral stones, cholla wood, fissiden moss, duckweed, Indian almond leaf, java fern, a money plant, marimo moss ball. 

What can I do to make the nitrates and nitrites go away? And is my kh and gh making any sense? I tried adding coral stone, egg shells to increase my kh but it's not working. 

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sdlTBfanUK

I suspect the coral and egg shells have caused the GH to increase so I would just take those out and do a 50% slow water change! You will need to do water changes anyway whilst you're trying to re-cycle the tank, the treatments you used may have killed some of the beneficial bacteria, or it could just have been the chicken as you state?

If the neocaridina were doing fine without the KH then it would be better to return to that set up, at least until you get it back to normal and stable. The important thing is not to make and big/sudden changes to the water parameters, the CRS will be more delicate than the neocaridina, but all shrimp are fragile creatures!

Simon

 

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    • sdlTBfanUK
      Really pleased to hear that your yellow shrimp tank is sorted now and you didn't even have to buy any new shrimps to repopulate, bonus! I hope the treatment of the CRS goes well, Ihaen't used any of those reatments so can't advise on those but would go with the info on the thread as that would be updated with the latest information/advice!  Simon
    • sdlTBfanUK
      I suspect the coral and egg shells have caused the GH to increase so I would just take those out and do a 50% slow water change! You will need to do water changes anyway whilst you're trying to re-cycle the tank, the treatments you used may have killed some of the beneficial bacteria, or it could just have been the chicken as you state? If the neocaridina were doing fine without the KH then it would be better to return to that set up, at least until you get it back to normal and stable. The important thing is not to make and big/sudden changes to the water parameters, the CRS will be more delicate than the neocaridina, but all shrimp are fragile creatures! Simon  
    • sdlTBfanUK
      Great to hear that you are sorted! I wouldn't have thought Cordoras would eat copepods but as long as it is working stick with it? Simon
    • ShrimpNoob9
      Hi everyone. I've been keeping caridinas and neocaridinas in the same tank for about 2 months now. My neocaridinas were doing very well. Everyone was molting at their own pace and was breeding like crazy. Then I did a stupid thing of leaving raw chicken bits. While my shrimps ate the chicken, 2-3 of them died after that. And now my tank is totally haywire. I've tried doing water changes, tried vacuuming the substrate. My tank parameters are also REALLY REALLY bad.  Nitrates 40 Nitrite 1 Gh >7 Kh 0 PH 6.8 CL 0 CO2 <15 My ammonia is <0.02ppm My tank contents are aragonite sand, black active substrate(in a glass container), coral chips, coral stones, cholla wood, fissiden moss, duckweed, Indian almond leaf, java fern, a money plant, marimo moss ball.  What can I do to make the nitrates and nitrites go away? And is my kh and gh making any sense? I tried adding coral stone, egg shells to increase my kh but it's not working. 
    • ShrimpNoob9
      Hi Simon, updates on the planaria and copepods. I tried using planaria trap and really screwed up the tank as I put raw chicken in the trap and when it wasn't trapping any planaria I took out the trap and left the chicken bits inside. I think they decomposed and caused a lot of ammonia as a few of my shrimps died(2-3). Then I used the benibachi planaria zero in the tank (did 2 water changes focusing on cleaning the substrate) and separated my snails and after two doses I don't see any more planarias. I also went to get 3 pygmy corydoras. That really made the copepods dissappear slowly but surely. Thank you so much for your help and advice!
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