Grumpy nan,that's the size I use. I don't use the drip tray,there's a storage thing for scourers, washing up liquid, tin with daily,I have little plastic trays underneath,as soon as the seeds have germinated, I remove the lids. I tried a heated propagator,first it was difficult to find somewhere to plug it in... kitchen is tiny and open plan at the end of the living room, and I found plants died quickly