PH kits are really cheap, 15$ max, and they come with the testing liquid and the ph up/down...also light leaks are better to not have than to have a plant that takes forever to flower. You will only get out what you put in. It's all easy, you just gotta work to do it, they aren't gonna do it theirselves. Hermie is just male/female organs on one plant, it will pollinate and seed itself, not very good at all, you will lose alot of bud.