Hello fellow grower, your gelato is looking very healthy and is flowering very rapidly. Expect a quick harvest probably in the next 2 to 3 weeks it looks from the pictures. After the white pistols ( Hairs ) have turned 75% brown / red / orange you need a 40x micro scope or a Jewelers loupe to keep an eye on the tricomes. Once the majority of the tricomes are milky with 10% of them amber is when I like to harvest!
Hope this helped and keep up the good work 👍
Happy growing! ✌️