this is my sort of setup at the mo but there is only one chamber so i can't have one plant in veg and one plant in flower simutanously. The Compact floros in the flowering chamber are going to be 42w warm white, would this be ok?

I will only be growing one plant in each chamber at any one time so, as this is in a cupboard/closet, would i be able to get away with just opening the door to allow fresh air instead of an intake and outake?

Any other tips would be good.

Cheers