Have part of my answer ..... 4 habitats have 2 dragons at L7 each giving 4 a day , one has L7 and Sterling silver at L 10 so this will be easier to work out later as long I check on my paper work presently and noted the time I collect ..... Thanks for all info folks

Early morning here, greyhound bouncing wanting breakfast sort of addled thinking ability to work out exact timing so will do later and post what seems to work .... I hope