AutoWonders
Adios People. AutoWonders Has Left the Building.
If you are in straight coco, then you should consider lowering you ph to 5.7 - 6.1. A 4 inch inline fan will work for a 3x3, but if you can afford it, go with the 6". Gives you more wiggle room so to speak. Also, be sure that your carbon filter (if using) CFM is the same as inline fan CFM or higher, which is preferable. I'll throw some luck dust your way. Good luck.