I suggest you go check them out at the vet because it's black but there is a possibility that it could be hay dust of he/she lives somewhat in hay. If you don't go to the vet I suggest you keep a close eye on he/she.
I'm going shopping tomorrow for new bunny food and I need Timothy hay based pellets. Any good brands that sell in large bags (I have 4 rabbits that go insane for pellets especially marshmallow she is very food aggressive)
My parents said that they're different breeds from their parents but they got a litter of Holland lops so that's that but Holland bubuns don't grow large and I did find the my heavier bun is marshmallow my girl Holland but that also could be from her pregnancy (if she is pregnant) but then again...
I'm confused if you're asking about the size of Holland Lops and if they're lighter than they look (sorry for being dumb lol) but if you are I was confused about the parents of my Holland Lops too because my bunbuns are small and their parents are medium but Holland Lops are light. Atleast mine are.