It sounds to me like you're growing in DWC... and if that is the case (a diary would be MOST helpful here!), you will be WAY overfeeding your plant ... I grow DWC myself and into my 5 gallon bucket only put nutes for 1 gallon... you want to watch the EC levels in your reservoir (bucket) and make sure that measurement is in the proper range... the proper range is going to depend on whether you're growing a photoperiod or autoflowers (again, having a diary to look at would be VERY helpful)... photoperiods can withstand a much higher EC than can autoflowers....
Please start a diary... then, when questions come up, we will have access to as much information as possible and will be better able to help you out!
Good luck...