I think my cycle broke!?!?! Help

[Hocky puck]

Had cycle everything going good jus had spike over one night went from .5 to 10 any ideas no feeding that night either.... Also is the another way to restart the cycle problem I have fish in tank

 

[scottayy]

What spiked? You should spike when cycling. Ammonia spike, nitrite spike, nitrate spike.

 

[Hocky puck]

Nitrate

 

[Hocky puck]

Tanks been up for over a year cycle was there

 

[crister13]

If nitrate spiked that doesn't mean your cycle broke at all. It means your cycle is working. If you had readable ammonia or nitrite that would be a different story,

 

[Hocky puck]

I need that tester