Hi, fairly experinced fish keeper here but reestablishing a 70gT tank after
6.5 years in storage. It's been ages since I had to start one over fresh.
I recall the process but not the time factor. No need for immediate answer,
the tank gets here in 4 days but we plan to fil it on the back porch to make
sure it's still watertight, and leave it there for a week. Then, we bring
it in and fill and start the process.

We normally start with just fresh water, gravel, and LFS plants and the
pump. I've had bad experiences with getting tank water from LFS places.
Then, after a week or so we add a molly nd leave it be. I seem to recall 3
weeks? Has to be a week after it clouds up then clears. There is a biota
bottle we used once and it worked well to get things going.

It's more of a 'remind me' than a teaching of the basics. Bet you folks are
happy to see that for a change!
xxcarol