FloraFlex FLORACAP® 2.0 | 8" - Case of 60Case of 60 The FloraFlex 8" FloraCap is a patent pending revolutionary tool for top feeding that also helps eliminate algae. The FloraCap 2. 0 was redesigned to give you a more consistent flow rate, even distribution, a slightly increased air flow, and improved stabilization. Place the FloraCap on top of your 8 inch rockwool cubes, maximizing your space in the vegetative cycle. Fill the cap with water and nutrients by hand or automate with FloraClips.