Your second table would have to be an NFT variation.
I don't see any way to flood it to a certain to a height and drain it with gravity feed water.
Like someone mentioned earlier. There is and inlet (lower level) and a drain pipe (tallest) in an EBB and flow.
The pressure from the pump fills the table up to the over flow tube, then once the pump turns off, all the water flows via gravity back down the inlet. Then the cycle repeats on a timer.
The tables would have to be pretty even in height to use one pump.
unless you rigged up a solenoid valve to open and close the inlet to each table at different times when the pumps on/.