Very Confused

[jrussuk]

Hi my tank i thought was cycled untill when i done my 70-80% water change the nitrite level has shot up I tested the water straight out the tap and it didnt read any nitrires can any one give me any advice??
many thanks

 

[fiki]

90% water change
retest
restart cycle by addin more ammonia...

 

[jrussuk]

thanks ill try that