My tank seems to be in a cycle again and I'm worried. My pH has always been good. The past few times my nitrite has been a little high and nitrate high. Ammonia was up slightly too. Last night my ammonia was high, nitrite and nitrate high also. I did a 50% water change. One of my male guppies was breathing very fast and died today. After the water change I also added an ammonia blocking fizzy tablet. My male platy has been clamping his dorsal fin for a few weeks now but I'm not sure if this is normal for them or not.
Now my levels are: pH- 7.6, ammonia-0.25, nitrite- 2-5 (they look the same to me on the API color chart), nitrate- between 0-5.
Obviously I'm concerned for my fish. Do you think my levels will normalize? I could add another Ammonia Safe fizzy but I'm concerned that if I do that my nitrates and nitrites won't normalize.
I've got 3 adult platy, 1 guppy, 1 snail, and 3-5 fry. I probably still have all 5 but I haven't seen all of them at once today. 1 of my platy is huge-ready to pop. She's the only fish that has a name. We call her Big Momma.
Any advice? Keeping fish is hard!