▲ 1 r/axolotls
Nitrite Spike in established tank
What could cause a nitrite spike (over 5!) in an otherwise established tank?
No new changes to my feeding habits or anything, ammonia is 0, nitrates between 0-5. Typically do weekly to 25% water changes, nitrites were undetectable a couple of days ago.
(I’ve tubbed my axolotl while troubleshooting this)
u/zolzman — 1 day ago