I think my cycle stalled

carolnewb

Hi, I got a 75 gallon tank cycled in just over 2 weeks but my daughters 10 gallon has been cycling since Christmas Day and still isn’t finished, I think it may have stalled for some reason. PH is good, Temp is good, dosing with ammonia, nitrites and nitrates are high but the cycle just won’t finish. Any tips to help it end?
 

Bunkerchunk

If your big tank is indeed cycled, perhaps you can put some media/decor/gravel, etc from it to your daughter's tank to kick it up...
 
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carolnewb

If your big tank is indeed cycled, perhaps you can put some media/decor/gravel, etc from it to your daughter's tank to kick it up...
Thanks for the suggestion, I was kinda thinking I might be able to do that but Wasn’t 100% sure. I’m new to this so bear with me! Haha The big tank is fairly new as well, so far only 6 tetras and 4 corys, only added a couple weeks ago, as I’m trying to stock it slowly and keep an eye on my levels and see how it goes. Would it still be beneficial to use the media in the small tank? Thanks
 
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mattgirl

Welcome to Fishlore

If you've not done a water change it is time to do at least one. I would change out half the water. Run the nitrite test and if it is still this deep purple change out half again. We know you have both ammonia and nitrite eating bacteria because your ammonia is going down and you are seeing nitrates. Right now this tank is too far out of balance to right itself. The water change will help balance it and you may actually find that the cycle is done.
 
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carolnewb

Thanks for the suggestion, I was kinda thinking I might be able to do that but Wasn’t 100% sure. I’m new to this so bear with me! Haha The big tank is fairly new as well, so far only 6 tetras and 4 corys, only added a couple weeks ago, as I’m trying to stock it slowly and keep an eye on my levels and see how it goes. Would it still be beneficial to use the media in the small tank? Thanks
Just adding both tanks were fish less cycles, if that makes any difference.
Welcome to Fishlore

If you've not done a water change it is time to do at least one. I would change out half the water. Run the nitrite test and if it is still this deep purple change out half again. We know you have both ammonia and nitrite eating bacteria because your ammonia is going down and you are seeing nitrates. Right now this tank is too far out of balance to right itself. The water change will help balance it and you may actually find that the cycle is done.
Thank you this is helpful!
Just adding both tanks were fish less cycles, if that makes any difference.

Thank you this is helpful!
How low do I want to get the nitrites? Did 2 50% water changes and it’s still deep purple but a little lower.
Welcome to Fishlore

If you've not done a water change it is time to do at least one. I would change out half the water. Run the nitrite test and if it is still this deep purple change out half again. We know you have both ammonia and nitrite eating bacteria because your ammonia is going down and you are seeing nitrates. Right now this tank is too far out of balance to right itself. The water change will help balance it and you may actually find that the cycle is done.
This is where I’m at now after 3 50% water changes.. my nitrates are so low now .. is that bad?
 
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