right air to water ratio

so i searching the trends to find the right ratio of air to water for an areo cloner. i was not able to find any befor i got the call from the hospital saying i need to go in asap. and iam geussing iam going to be there a while. so dose anyone have tips and ratio. mesurment. anything will work plz

I hear amin on 5 off is the best. There's no proof but that's what I hear. U can get a factory setted timer that runs 1 on and 4 off at "horticulture source" for 56$. Mines on the way