After a long almost 8 weeks, my 10 gal
. tank finally cycled. In the process, I lost several fish. My water parameters after cycling were 0 ammonia; 0 nitrites; 20 nitrates;
I added three guppies one day after the cycling was completed. The tank contained only 2 platies.
Two weeks later, back to cycling again and the loss of two more fish. My ammonia has just gone down to 0 after being up to 5.0. Now the nitrites are creeping up.
What did I do wrong? Did I add fish too quickly?
This is getting frustrating.
Oh, and I've been doing daily water changes since the numbers have gone up again.