I *think* my 5 gallon tank has finally cycled. My betta has been muddling through.
About 3-4 days ago I had a big nitrIte spike but the nitrAte was starting to tick up, so I changed a bit more than half the water. Now the ammonia is 0, nitrIte is 0 and nitrAte is somewhere between 5-10, but probably closer to 5.
I'm wondering if my tank is cycled or if I just changed too much water the other day? The ammonia has been under control for awhile, so I'd just been managing nitrItes.
If cycled, how frequently should I be changing water and how much? Or do I just regularly test the nitrAtes and change when it starts to get high?
And last question, do I need to keep checking ammonia and nitrIte? Is there any reason to think the tank cycle could become disrupted?