So hey guys. I'm having a bit of an issue here in my 55 gallon. It's been cycling for a month and has been up and running for quite some time. Ive noticed of late I'm having nitrite spikes nothing severe yet. But what should I do to lower it and keep it 0. I do weekly 25 percent changes along with gravel vacs. Also have ammonia reducers in both filters..Please help. I cant loose my green terror or palmas (2) fish are friends not food