[RobsGreen]

Originally Posted by ocitown

RG, Do you remember the rule of thumb for the size of res. based on the plant numbers and their solution quantities on multiple plants for one res.?

I haven't seen him mention anything based on plant quantity, its usually light power. For every 50 watts use 2-3 gallons of water for the res. I guess the more light power more water is used up so to keep things working properly you need more water. My res is just big enough for my light according to Lucas, I have about 16-18g of water.