Orange Cichlids

Hi, I have 4 Cichlids, 1M, 3F, Mouth Breeders, They are pure orange, The
male is 5" long, and females are 3-4", full grown I guess. I had them for 3
years now.

Two questions.
1. Can anyone identify what kind they are, with so little info, sorry no
digital camera.
2. Recently the male has started attacking his own semi grown offsprings,
about 2-3" long, he does not bother the smaller frys, or the larger females.
Is this normal behavior? what can I do to help?

The tank is 100 Gal, I only keep this breed in the tank, total including all
the fry 18, plus two cat fish.

Thanks for your help.

Jim