Lots of good advice on this forum, thank you all
I've got a 8 weeks old Leo lionhead/dwarf mix born 4th November about 3 weeks ago so now 11-12 weeks old, I was told it's a girl but now I see testicles and he's very active and mounting my other rabbit (I was told it's a boy) lop-eared bigger than him but still can't sex him, I was told he was 10 weeks old a week ago when I took him home but they were not too sure about DOB said 12-13th November so just a week younger than Leo he's bigger but he's still complete baby and probably doesn't understand what's going on when Leo is following and mounting him. I keep them in separate 100 cm cages from beginning I was hoping they will bond and can stay in the same cage warm each other but now I see I will have to keep them separated until they are both neutered that's sad but I understand is necessary.
My question is: Leo is almost 12 weeks and testicles are in place, could he be neutered now or 4 months is a minimum? He's got very upset when I removed him from Smokey's cage as he just gets very hot he's a real macho! Also my plan was to get one male and one female and neuter male so they could live together. They are both accepted me and after just one week looks like they are comfortable with me, Leo shows more affection he's very active as I said, Smokey grey lop is more relaxed but I feel he likes me too. They are very different temperaments. Of course Leo changed a lot and maybe there will be changes in Smokey too, just maybe bigger breed he or she will become sexually active a bit later.
And now, if they are both males is it necessary to neuter both? Probably yes.