@halcyondaze --- I hate aphids, but specifically root aphids. I'm running a DWC system and believe the rock wool I used might have had eggs or something, but I now have an infestation. I've seen a method of killing them without crazy chemicals is using water and dry ice to produce CO2 and suffocate them for thirty minutes. Once they are dead you can just rinse them off. Thanks for such a detailed article!