i wish you the best, this is gonna be a good year 
happy new year brother
your garden is looking fresh as always
keep fighting the good fight my friend
lots of plans should be coming to action Plus a whole lineup of new grows, strains, budmaster lights and more already off to a great start!
Welcome and Happy New years to you!
They are a nuisance but can be controlled even though it takes vigilance. Work on letting your soil dry out more in between waterings will help in the control as well. 
I wish you luck
With the yellow sticky cards I found if you rip them in 1/2 you can cover more area with them. The gnats tend to hang out in the dark area's of the tent, so under the foliage, between your pots, on the light shades and the top of the soil. So I recommend placing the sticky cards in these places. I found the cards that filled up the fastest were once I layed directly on the soil or leaning on the soil and stem. Also when I was using HID lights, I somehow got the sticky gel on the back of one of the HPS reflectors, and amazingly it caught a ton of the buggers, so maybe placing one in the shade above your lights may help too (watch your hair and face when leaning in your tent).
Also you can try sprinkling some of the crushed dunks right on your soil as well. Its bacteria based so the bacteria is what kills the fungus gnat larvae. The yellow cards are for killing the adults. Try to keep up the process for at least 30 days and you should see no more gnats.
Some recommend putting sand or diatomaceous earth on the top of the soil with success, I've never tried those methods but it seems that quite a few have had success that way as well.
You can cut them open and sprinkle them onto the soil or soak them in your water overnight before every watering. Keep that up for a month and you've broken the life cycle. I finished up with a decent top-dress of neem seed meal, which I reapply at least between plantings. I haven't had a reaccurace of fungus gnats since. It's been months. Unfortunately, I do have a community of thrips enjoying my soil while I'm out of town that I didnt notice until right before I left, but there's nothing but cover crops in the pots right now, so I can get that under control easily after I get back home. 
We keep telling each other how addictive it is to grow. I don't think I'll take another break this long. Two months is about a month too long. LOL! It helps to be able to watch the rest of you grow and your gardens are looking luscious, especially those statuesque beauties in your flowering tent. Well done. 
Don't you just love starting the new year with a harvest in the first month? Sweet. 
Happy New Year to you as well. 
Your involvement here at 
portends a more interesting year for you. 
That's some excellent advice on the sticky cards Icemud. I hadn't thought of cutting them down or placing them around that way. I used the idea of the dunks, although I purchased these
It's also sold as loose material in a large container. I knew I'd only need one or two of the small packets, so I went with them. I had a plan.
Ahhh..... the joys of organic gardening, eh?
Diatomaceous earth works much more effectively if it's puffed onto the surface than layered. If you think about this it makes perfect sense. It's really the crushed fossilized skeletal remains of tiny sea creatures. If you layer it, those tiny shards of bone have a better chance of linking together and forming a smooth surface that the insects can walk right across without damage. I've seen this happen on many grows, including one of my early rescue grows. Puffed on, those sharp edges stand a better chance of ripping into the exoskeletons of the fungus gnats, causing them to dehydrate and die.
Sand, IMHO smothers the soil surface. I've never been comfortable with that method. I use mulches, and sand doesn't allow for the decomposition of mulch material.
I just got back from mine and it was so refreshing for the mind to be with family over the holidays. I hope the new year is treating you right Good advice Sweetsue I used to get fungus gnats a lot when I was using fox farm ocean forest and happy frog but ever since I switched to Promix I haven't seen any gnats so thats been a plus for me. unfortunately never tried it on gnats though. Hope you are well and enjoying the new year
Icemud, I took a few minutes and walked through the latest updates and read your hermie smoke report and I'm mighty impressed buckaroo. Wonderful advice on keeping things growing smoothly when you have to travel. You reminded me that tomorrow I need to call my daughter to have her fill my SWICK reservoirs (I only have her do that once a week) and burp the jars of harvest. Thanks for the memory bump.
I'll be on vacation for another month at least and man, do I miss growing.
I hope you are enjoying the fun of being away and absorbing the memories of the new places you visit That's so awesome that your daughter is taking care of your babies for you nice! Can't wait to finish these other plants and harvest them, should be very soon
there mostly clear with some cloudy now.
enjoy 
