Yes its real hard to tell unless you have clutch mates in the same clutch,all the spiders Ive seen have real dark heads,Ive only seen a few pics of spiderfires, the nerd site has some pics.they are getting brighter as they grow just like fires do they should get a more golden color to them as they grow.the Plus is they are Het for Black eyes, & if bred to a pastel you have a chance at a FireBee which are super hot better than a killerbee in my opinion.