CONVICT cichlid help!? Chasing and breeding signs?

[FishEYEO.O]

I recently bought 2 convict cichlids for my 30 gallon tank. They have gravel, a heater, a 30 gallon filter , a small 4'' house decoration that used to be in my 1.5 gallon and a 3.5'' fake plant that also used to be in my 1.5 gallon, one terra cotta pot with 5'' diameter , open on both ends, and two whole terra cotta pots with 3'' in diameter and a 20'' tall fake plant. I first need to know the genders of my convicts. I BELIVE the pink is a male and the striped is a female , but im not too sure so thats why im asking. The pink digs in the gravel and has started harassing the female. "he" is a big pig and eats loads where the female dosn't seem to eat anything. She only eats what "he" spits out and occasionally a few flakes. "He" has chased her behind my filter and she seems to be taking refuge there but still won't eat very much. She is exerting so much energy, should I be worried about her? She has no fin damage as I can see and is just being "harassed" by the pink. Any suggestions? I was going to get 6 convicts and let them pair off and return the other 4 but the petland refuses to buy them back at the same price they sold them for. I am feeding them "Mini" cichlid pellets and some tropical flakes , as the mini seem to big for the female (im going to go buy some "baby" pellets for her) Here are some PHOTOS so you can help with the sexing

http://i1210.photobucket.com/albums/...10815_0076.jpg (Female)

http://i1210.photobucket.com/albums/...10815_0078.jpg (Is this a male?)

I know they are quite young (about 3''-3.5'' each) but they breed at this age and from what ive heard CAN be sexed with a close eye. YOUR OPINIONS ARE APPRICIATED AND I HOPE YOU TOOK THE TIME TO READ THROUGH ALL OF THIS! THANK YOU!!
*SUNSMILE*

 

[OrangeCones]

You have moved the photos, so they can't be viewed.

 

[FishEYEO.O]

http://i1210.photobucket.com/albums/cc404/FisheyeO_O/20110815_0078.jpg

Thats the one I think is a male..

http://i1210.photobucket.com/albums/cc404/FisheyeO_O/20110815_0076.jpg
That's my female.

The pink is chasing like mad...the female goes to the top corner and just sits there until the pink harasses her again. The pink is also flaring up at the new background I put for them, but I guess this is normal. SORRY about the photobucket links...there a pain ><

 

[big54bob]

You are correct with the sexing.

I would pick up a second female to spread the males domestic abuse at dif. direction. The male will pick the female he likes best and be prepared to return the extra female as soon as they pair up.