Hey guys,
I just got 15 rummy nose last night to begin what I was hoping to be a school of around 40 or so.
Within 12 hours I have lost 7, with a couple more looking not great.
There is 0 ammonia, nitrite and nitrate. No idea what is happening.
I am a very experienced fish keeper, keeping fish for more than 20 years and I've never seen anything like this.
Thoughts?
Although I don't think it's the root cause for why they died, but I would expect to have some trace of nitrate if your tank is cycled?