0 Nitrates, RO/DI water change, now 5

viper222

Member
OK, I have had my tank cycled for 20 days. I have added 5 green chromis and 2 tr clowns, 10 margarita snails, 15 or so hermits, 1 Red Serpant Starfish, and 3 Emerald Green Crabs. All of these except for the Emeralds were in about 2 or 3 days after the cycle completed on July 4th. Emeralds have been in for about a week now.
My question is, I have been checking every day, or every other day, and ALL of my levels were fine, I had to add some calcium buffer, and dkh buffer, but those have been fine now for about 1.5-2 weeks. My Nitrates, Phosphates, and Nitrites(some people say I don't have to check this much really unless adding something major to the tank). ANyway, those 3 were 0 or so close to 0 you couldn't tell it wasn't 0. I was sooooooo happy. So, I just got my new RO/DI so after throwing out the first 15 gallons it made and testing to make sure everything was 0, I decided hey, now would be a great time to do my first water change. I have a 60 Gallon that has actually about 55 gallons of water due to the Wet/Dry in the bottom. I mixed my Red Sea salt, and did a 10 gallon water change. Now 2 days later I test my stuff and my Nitrate has gone up to 5ppm or maybe a little bit more. I know this is not high, but why? is it because all the little buggers and bacteria is now lower since 10 gallons of water is gone? I will watch it closely, but why? Is this normal?
 

michaeltx

Moderator
perfrectly normal. its part of the tanks normal cycle everything escess foods and detirous will be turned to ammonia then to nitrite then to nitrates the only way to remove nitrates is from a water change. 5PPM is not a bad number at all. 0 is much better but realisticly with out a lot of equipment and macro a mature DSB it isnt going to happen.
if you have corals you really dont want them to get over 15-20PPM or it will start to effect the corals Fish only systems can tolerate a little bit higher level.
mike
 
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