Same thing here. I have been purchasing caps packs like crazy. I put in the tea every 3 days in my RDWC and there is not one root aphid on the roots I can see that are submerged in water. I do see the flyers and root aphids coming out the top of the net pots. They avoid the tea water like the plague. So they are able to still colonize as long as they stay above the water line. They think they are so smart, wrong. I put in a top drip through the net pots in three zones and nothing so far after 3 weeks in those zones. The 1 zone I did not implement a top drip has them but not on the roots I can see below the net pot. I`m going to install a drip in that zone as well. I do have to say that the plants in the zone with RA`s in the net pots look fantastic. You would never know they were there if you looked at the plants. I hope others find out about these packs, the shit works against RA`s! I could never thank CAP enough, saved my grow. THANK YOU CAP!!!!!!!