Bag Seed Vs. Bought Seed

Man oh man this past week was insane! I started to see some changes in the plants that made me nervous so I had to quickly make some adjustments to salvage the grow. Mid-week I noticed that one of my Super Skunks was REALLY under preforming. The most noticeable difference was that the stems were showing a reddish tint and some of the leaves began to wilt! I started to get panicked because up until this point things had been running rather smoothly so I couldn't quite figure out what the problem was. I asked a few experienced growers what they thought and many of them suggested that I flush the plants and check the PH because that was most likely the problem. Since I was in panic mode I decided that I would not just test the plant in question but, I would go ahead and flush the other plants as well to see how the run off read. After running gallons of water through and testing all of the girls it turns out that this was not the problem. In fact all of the plants had a PH of 6 or so and since I was growing in soil I didn't see that to be a problem. However , what I did notice was a large amount o fungus gnats that had not been there before😫 Once I started doing more research I was noticing similar symptoms in my plant so I assumed this was the problem and I actively made the choice to try and resuscitate my plant outside instead of keeping her in the tent with the other girls. ** Also,I live in South California so I think its fine for the plant to be outside** Since I currently on have 1 tent running, I didn't want to be held back from my future grows because of one plant that I was attempting to save so I figured If I'm going to keep it around and try to nurse it back to health , it makes more sense to do this outside where the process can be done slowly and I can still have my tent available to start new things. I took precautions and added some additions sticky bug traps to catch gnats as well as putting down some diatomaceous earth to deter the pets. I think that the healthier Super Skunk was also affected slightly because its grows has slowed down a bit (which is extremely frustrating) but, I believe that one has a much stronger chance of completing flower than her sister. Long story short, I will be investing in another tent eventually so that I can run a perpetual grow, that way this type of set back won't feel so agonizing. In addition to this I will probably be covering my top soil in layers with thins that won't interest gnats (i.e. river stones, glass gravel, diatomaceous earth) in a more proactive way so that this doesn't become a problem again..