Originally Posted by sepulatian
Yes, do the water change. How old is this system and what sized tank? I am only going to be online for a few minutes, but I will check this post tonight. The reason I am asking about your tank is because I too had a nitrite spike when my 55 was about 3 months old. I had not had ammonia in months, then the nitrite spiked to 1. I did water change after water change and it brought it down some. I asked all around and no one could figure out why it had spiked and wasn't comming down. It turned out that it was just a prologed cycle because I was doing water changes every week (trying to do everything right being new) I stopped doing changes and waited for it to finish. I only had 2 damsels in the tank at that point. I had thought it had cycled fully already, but the constant presence of ammonia from the fish were the reason for the large nitrite spike. Do some change and at least get it down to 1. What fish do you have?
i have 1 maroon clown fish right now, the tank is a 58 gallon. i've only had it set up for about a month. the previous owner had it running for years (when i transfered i took his water too) but with nothing in it. i only have done 1 water change since i've had it running. it was a 20 gallon water change and i used the water from my old 20g that i transfered to this tank. maybe it just needs some good ole fresh saltwater?