Nitrite levels

[Ricksta]

I everyone does anybody no some good tips to remove nitrite levels from my tank, I have done lots of regular water changes, would this cause this???? Please help

 

[Nimo]

Is this a new tank? And is it fresh or salt?

 

[Nimo]

whats your water readings? ph, ammonia, nitrites, nitrates. What kind of water conditioner are you using?

 

[Mumma.of.two]

Moved to FW getting started. Let me know if it's SW.