Are your plants looking healthy? If so its fine. You should also check the EC of your nutes/water and run off to see if there is any buildup of salts.
I believe you want the first few ounces of water from the drip to get somewhat accurate reading. Maybe wrong though FYI.
(im level 1 electrician)
You need that light on a heavy duty timer, they are those giant metal ones with a door. You should also make sure the receptacle you're using is tight (screws that the black and white conductors).
Or use a relay
Also this circuit youre using, are you sure its a...
Do not buy cheap inline fans. Invest in a Can or Vortex and you'll be happy. Valueline and cheap ones make lots of noise and have inflated cfm advertisments
Do not run extension cords to power lights or any other large load. You're asking for fire otherwise. Also the electrical for your house should be mapped out at the panel which allows you to plan your grow. The bathroom comment about how you have 25 amps doesn't make sense. These loads will be...
Easy.
Get rectangular black greenhouse trays, milk crates and a little wedge for one side to prop it up so water flows to one side.
On the lower side make holes and get a bucket to put under the holes.
How old is that current bulb. You should replace it. It's only meant to use under proper condition... a split along the base is not what I consider proper.
Most likely your females are pollinated and will begin producing seeds. You can also pick off the sacks from the hermie to reduce amount of pollen or chances of pollination (though some argue its futile and you should indeed cull males and hermies).