They were sold to me as perculas...the larger was a wild caught and the smaller was a tank raised...I actually think the tank raised very well is an ocellaris. I have done a lot or research and I am almost positive the larger darker one is a Perc. I have read of them cross breeding which explaines them liking eachother.
But it is so hard to tell...the only for sure way I read about was to count the rays on the dorsal fun, which is imposible on a moving fish.
Also you can't always trust what the people at the pet store say...i was sold star polups and xenia once!
Here are a couple more pics, maybe they will be easier to identify. :happyfish
The first one is Roland, had her for two years, the tag on the tank said wild caught percula
The second one is Issabel, had him for 6 months, tag said true ocellaris, sales man said true percula.