Well the darker one is almost double the other and they seem to eat about the same.They eat black worms,trout worms,and i am trying still to get them to eat shrimp.I fooled them once with niks soaking trick but the next time they were on to me.They are getting an upgrade this month from there 46 gallon tank to a 180 where they will live with my colony of albino knifes.a few pictures...

for your pic posting ways......