I had a fully cycled tank equipped with a Biofilter. I felt it was producing to much current for my axolotl and switched to a Sponge filter. I left the both on for a few weeks and then pulled the Bio. Now my No2 levels have spiked due to the new filter not having enough growth. I have a few options and I wanted to get some opinions. The No2 Levels were in the high 2's yesterday. I did a %50 water change. He is eating fine, active and his gills and tail show no signs of stress.
I have a 6 gallon fluval Edge tank in my office that has guppies and Cherry shrimp in it. I was considering having him stay there for a few weeks while the No2 levels drop. I know this is not ideal but he's not more than 5 inches so he wouldn't be to cramped.
Just placing him in the fridge for a 1 or 2 weeks while the levels drop.
Letting him stay in the tank and do %25 water changes every other day.
I have a 6 gallon fluval Edge tank in my office that has guppies and Cherry shrimp in it. I was considering having him stay there for a few weeks while the No2 levels drop. I know this is not ideal but he's not more than 5 inches so he wouldn't be to cramped.
Just placing him in the fridge for a 1 or 2 weeks while the levels drop.
Letting him stay in the tank and do %25 water changes every other day.