Hello,
I have set up a 160 litre coldwater tank. It has been running for three weeks on a fishless cycle. The nitrite and nitrate have both spiked very high, but aren't going down.
Should I do a water change during the fishless cycle to reduce this, or should I wait and let the bacteria in the filter reduce the levels? I have had conflicting advice from different LFS - some say add fish, some say change the water but not to add any Nutrafin Cycle (didn't understand why not, surely this would be helpful?).
Really stuck on what to do next, any advice appreciated.
Thanks
I have set up a 160 litre coldwater tank. It has been running for three weeks on a fishless cycle. The nitrite and nitrate have both spiked very high, but aren't going down.
Should I do a water change during the fishless cycle to reduce this, or should I wait and let the bacteria in the filter reduce the levels? I have had conflicting advice from different LFS - some say add fish, some say change the water but not to add any Nutrafin Cycle (didn't understand why not, surely this would be helpful?).
Really stuck on what to do next, any advice appreciated.
Thanks