NUTRICULTURE - EBB & FLOOD 100 - 120x108x21.5cmEbb & Flood 100 Tank 100L Plants 4 9 Dimension 120x108x21. 5cm The Ebb & Flood is similar to the Flo Gro but it floods from the bottom instead of the top which makes it even more efficient than the Flo Gro at supplying oxygen to the roots. The Ebb & Flood can either be filled with clay pebbles acting as a large pot, or can be filled with pots containing any growing medium. This bottom flooding growing system with a timer produces massive yields thanks