smaller lotus can easily be grown in large flower pots without holes....just guessing I would say they should hold about 10 gallons of water...or the oil pans like Jerry is using-those would really be nice if your putting the lily in the pond....and I've used 5 gallon buckets in a pinch with Momo botan and chawan basu both did just fine....I use half barrels for the larger growing ones or you could always just bay the tubs with rope handles.....
Lawanna