I see a lot of people out here on the fence about switching to Coco or making the choice to try it and want to know what issues it presents. Basically, salt build up, gnats, frequent feeding, and having appropriate drainage are the main concerns and easily remedied. There is a misconception that it is not hydroponics. It looks like soil but does not like to be treated as such. It is hard to overwater and with a little Perlite, watering daily is common in flowering.