Mini Cycle. Dangerous parameters.

[Crazyhermitcrab]

When I did my weekly parameter test I was shocked.
Amminia: 0ppm
Nitrite: 0.25-0.50ppm
Nitrate: 40-80ppm
How can I get these levels down? They were perfect last week.

Potential causes:
I accidently cleaned out too much of my filter this weekend.
Yesterday I added 7 (1 month old) mollies, and my guppy had 13 babies
Over feeding so I could rescue my fry without the fish eating them

No one is dead, they all appear fine. How can I can I get my parameters back to normal?
Should I do more PWC or should I let it work it self out?

 

[Delapool]

I'd do more water changes and drop it down (I assume your tap water is fine). If not treating with something like prime, I would add a pinch of salt (NaCl) which will protect the fish from the nitrites. You don't need much.

I have the dose rate below but google it just in case if interested.

Salt - 1/15th tsp/10g for 1ppm nitrite

 

[Crazyhermitcrab]

I took out 10 gallons. I added some more Tetra Plus.
Fish seem fine. Everyone is active and swimming around. I am worried about the fry. I am not feeding the adults for a few days so i can get nitrite down

 

[Delapool]

Good news. I had quite a high nitrite spike in a mini-cycle and the fry were ok. I did suspect that it make the fish weaker (they just seemed off a bit) but can't prove it.

 

[Crazyhermitcrab]

Ok thanks ill keeo u posted

 

[FishyBusiness]

All those could've caused it but we've all been there! just do a big water change (75%) and test again. If still high, you can do another one.