Greetings all..hoping for some expert advice/suggestions on my spider mite problem. I'm 4 weeks into flowering. Indoor hydroponic (specifically bubbleponic) 10 gallon undercurrent system with 2 plants in this crop. Everything looked great, no major signs of any problems, except maybe the tips of the fan leaves were a little brown. Didn't think much of it initially. Buds look good...growing nicely with lots o' crystals. Ph is regulated daily to 5.6. PPM runs around 1800 with botanicare nutes. The other day I was looking at the trichomes under a microscope...just for fun...and a spider mite jetted across the field of view....ahhh..what the hell!!! I immediately began inspecting the plants more thoroughly. Pulled some fan leaves and looked underneath...sure enough black dots. No major signs of webbing...but I did see one or two uppon a deep inspection. Inspection of the black dots and more of the fan leaves under microscope reveals more spider mites. All different colors. Black...green...clear....grrrrrrr. Alright...because I'm already into flowering, a pesticide was not ideal. So I went to may local shop and bought some 1500 Lady Bugs. Let those mothers go to work. Its been about 3 days with the lady bugs on the clock. The floor of the room is now littered with lady bugs..some dead...some just hanging out probably waiting to die. An inspection of a leaf still shows mites. Alive and kicking. Here's my question....should I remove all the fan leaves? I'm thinking this will drastically reduce the "feeding area" of the mites, reduce their population and help the ladys erradicate. or is this Lady Bug attempt a fools errand and I need to use a pesticide? Thoughts? Here are some pics.