OKAY man. Great work, Real nice job for your first try you are doing lots of things right. You have nice close temps at this stage which is exactly what we want. If we have too much of a difference between lights on and lights off at this phase of development the plants will stretch. We minimize that with tight temp gaps. Once you get pat weeks 4 to 6 of flower, THEN you want to open up that temp gap to more than 10 degrees less with lights off. It will instead now send a signal to the plants to put more energy into the budding process and resin production. Keep up the good work friend, If you have any questions please do not hesitate to ask me. If you got a minute please follow my profile and check out my 200 light 7,000 plant diary. Happy growing!