Geezer From The Freezer wrote:

I've now added my two fish. They seem happy, but I have noticed
that the ammonia had risen this morning. The levels are low, but
detectable.

Other than getting awoken from their beauty sleep [ ;-) ], how
are those guys doing?

-D
--
"Faced with the choice between changing one's mind and proving
that there is no need to do so, almost everyone gets busy on the
proof." -Galbraith's Law