I'm having problems with all my six plants. All of them are different sizes and three of them are seedlings(6 weeks old) 2 of them are just started flowering (10 weeks old) and one is in 4th week of flower(12 weeks old). All of them are in 12/12 for 4 weeks. Two of them has curling down leaves, had white dots before but i trimmed those leaves and now it has only a little. And their fan leave tips are becoming yellowish light brown but nut curling down. The big one is(or was) very healthy and buds are full of trichomes. Some of the leaf tips are yellowish light brown, it can be because of nutrient burn. And all of it's fan leaves have white spots everywhere. Not like spider mites because spots are not in specific places like this; http://i251.photobucket.com/albums/gg281/tipmanmstr0099/mybabies029.jpg Spots are everywhere but there's a little distance between them. I mean it doesn't look like spiders came and laid eggs, it looks like 100 spider came and every one of them laid one egg Also today i saw a tiny white bug but over the leaves, not under. And there's no bug or white spot under leaves. Lights are off now i'll post the pictures tomorrow when the lights are on. But I've had these problems before. This is when the white dot problem started on the big plant(pics are taken 10 days ago); http://img205.imageshack.us/img205/9054/dotstx0.jpg You can see the top bud is clear, there are only some white dots on the top right leave. http://img225.imageshack.us/img225/3267/budes4.jpg It has thricomes everywhere, I don't wanna lose this plant at this point. All of the plants has some white dots but i only found one bug but there are too many white dots. Using 3-5-7 nutes(no nutes for the small ones yet). Water ph is 6.5, soil ph is 6.7(it says 6.7 on the package). Before planting I applied a very strong insecticide to the room but today I found a small spider web and killed the spider(it was too small). What do you think this is? I'll post pictures of all of the plants tomorrow so it'll be easier to identify the problem. I read the grow faq too many times, searched the forum for hours but still not sure what it is. PS: Sorry if there are any grammar mistakes.