Three Sweet Amigas

This week, the plant structures are forming. The plants are now getting full strength nutrients including flower fuel. I water every other day, and feed every other watering. It's 1 gallon split three ways. This may sound like a lot of water to some, and I admit to being a habitual over-waterer. To compensate, all of my pots are on plant stands inside the saucer, so my pots are never sitting in water - works for me. This week I also increased the lamp intensity to 100%. Sweet Gelato Auto - week 5, 5 main colas, flowering should begin soon. Low stress training (LST) began early on day 16. Sweet Trainwreck Auto - week 4, 2 main colas. This one was topped (HST) on day 22. Sweet Bruce Banner Auto - week 4, 3 main colas. I began LST on day 22. The clover is an interesting experiment. I read it is supposed to increase Nitrogen intake by the Cannabis plants. I don't know if it actually does anything because I'm not a botanist or knowledgeable on the science. I like the green color though - it's pretty if that matters😇 The only side affect I'm seeing is the emergence of Gnats in my tent. On all of my past indoor grows, I have not had any bugs. I'm not sure if it's the clover though, or something else. The bugs might be related to ventilation. I have sealed all of the screened windows in the tent to contain the smell, and it works pretty good. For my intake, I am using a AC Infinity AXIAL S1238, 120mm Muffin Fan set on low speed. Inside the tent my exhaust is an AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with speed set to 6 and ducting to outside through a window. I haven't changed the filter since I upgraded the fan a year ago and four grows - so maybe I should change the filter, or at least wash the fabric sleeve. What do you think?