[/quote]tannable75 said:Sorry for the loss Sounds like your tank hasn't cycled yet.
I'm assuming that your nitrites were high not nitrates. They will spike back up again until the cycle is completed. Feed sparingly, don't replace the deceased, and do waterchanges until the cycle is complete. If you get two or three consecutive daily readings of 0ppm of both ammonia and nitrite your cycle is pretty much complete. Here is a good article on what cycling means.
Good Luck :thumb: