I have a 125 and has been set up for a year. I Just saw a hint of trates today and did a water change about 2 weeks ago....I have never had any hint of either trates or trites in a long time...is this solved with a water change? I have 3 shrimp and 2 starfish and dont want anyone killing over on me...Also running an Aqua C skimmer...Since its just a hint should I let it roll or do something about it?
What is the exact amount of nitrates? A "hint" to me is like 1-2ppm which could be a test kit error. Have you had any changes to your system in the last few months or weeks that may have caused a nitrate rise? What are you doing for nutrient export? DSB
? Refugium? Also, what and how often are you feeding?