Geezer From The Freezer wrote:

Donald,

It's a 63gallon tank. I've got plants (some leaves dropped off, i've
left them to decay) and i've added about 10 pellets of food.

I'm off to the LFS to get some liquid ammonia and a better(and
another) filter (Fluval 4)

Ah, the plants...

They compete with the biobuggies for the ammonia and nitrite. Also seed
the tank with biobuggies so you don't have to start from scratch.

In that case, I'd just slowly add your population of fish and keep an
eye on the NH3 and NO2 levels. A new fish or two (depending on size)
every three days or so. Should be fine.

-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