im realizing now i cant really do Flood and drain since my res is 60litres for a a 4x4 so only a bit of the 5.5inch cubes get wet at the very bottom, whats a good cheap drip system that i could set up to put over a 5.5inch pot?
What are the height, width and depth of your tray?
And do you have also an external reservoir as well?
And what are the height, width and depth of this one?
Does your tray have a cover?
Are the plants only in the 5.5 cubes?
Are the cubes placed on the bottom?
Do you have pics of your set-up?
More information will give you better answers.