Understanding Hydrometers...

[BeerBelly]

Having just started this brewing lark :rofl: i have lots of newbie asks please, This one concerns the use of the hydrometer correctly.
The kit i purchased as one included makers name Stevenson Reeves Ltd (hydrometer), it's a standard home wine and beer making hydrometer and as useful coloured bands around it.
Question is is it that easy or should i avoid doing certain things while waiting for it to finish correctly
Theres a red band used to show beer start points (mine was within this range) it also as a black line to indicate that its ready to bottle/sugar, do i leave it for a few more days at this mark then keg up and sugar?
So confused and worried i will bugger my first drink up :?

 

[ano]

Ignore the bands and read this guide instead.

It's ready to bottle or keg when it's finished fermenting, you can tell it's finished when the gavity stays the same over a 48 hour period.

 

[BeerBelly]

Thanks for that, missed that one.