I had pretty good luck with a $4 bottle of bug killer that i got at wally world.. its supposedly safe to use up to the day of harvest on veggies.. im sure you will see it if you got there. I used the WHOLE BOTTLE and drenched a couple plants.. and I mean DRENCHED with the stuff.. including spraying the media very unsparingly.. DRENCHED is the word of the day! haha..

Ok so then I put fresh ph'd h20 in the res and flushed the medium for an hour to get the stuff out and mixed new nutes.. slightly lower strength for stressed plants

so far so good.. about a week with no bugs and plants are gaining life again. no pest stips work (the chemical kind) although i never had luck destroying the life cycle.. I can tell you something to do....

CLEAN EVERYTHING within like the whole room and adjacent room with lysol or something.. I had a random towl on the ground that it turns out the flying form of the bugs were living in and waiting till the poison would wear off and repopulate the plant.. every day 1000s of new critters.. fuckn terrible.. I almost threw in the towel.. I was litterally about to drag the rig out to the back porch and douse the whole setup in lighter fluid.. strike a match.. and achive the "final solution"

unless you are about to harvest or something i would hit up wally world for some veggie insect killer.. worked wonders for me.. and that was after the hydroponic store FAILED with expensive products over and over..

Not that im claiming this is the end all solution but i know what it is like to watch babies get eaten so I wanted to give you at least a good first strike tactic..