if u have a mag glass you should be able to see the trics, they should appear like tiny pin head mushrooms. the tops should be clear in hte beginning and turn cloudy then amber. cloudy amber is when most ppl harvest. But like i said swolen calaxes, loss of white pistals pushing out, frost, smell, bud density, dying plant...alot of factors can tell you if its ripe. are the colas fat?