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Richie88

Cycling tank - Nitrite won’t break Dow

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I’ve converted my 400L salt water tank to fresh, 3 weeks into the cycle and the nitrite isn’t breaking down, above 5ppm. I’m conducting a fishless cycle, reused media balls and introduce new noodles. Used stabiliser as per the instructions, 40kg of holey rock on a sand substrate. Last week I added bacteria, prior to adding the bacteria I’ve completed 2 water changes 

im not sure what more to do, should I be more patient? I was expecting the cycle to be ready after 7 days. 

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I've only had fish for about 18 months so not as experienced as others here but pretty much all of my tanks took 6 weeks to cycle, and most had a nitrite spike during the 4th week.

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Patience you need the levels up to get the bacteria going stop the water change until the reading drops. Also if you use API kit take a water sample to a LFS like Labyrith at Campsie as Andrew uses JBL test kits

 

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