Red Marks on Pectorial Fins of L144 - not sure what he has done

Hiya Guys

Currently keep a trio of L144's that are 3 inches in size and in time am hoping that they will bless me with some babies but i am little worried about the male L144, on feeding the tank yesterday i noticed his pectorial fins (thickest part of them) is abit red like his scuffed them in someway. His favourite spot is resting under the wood root and between the gravel

Ammonia 0mg
Nitrite 0mg
Nitrates 0mg
Ph 7.8

Tank houses small rasboras, lampeyes, 2 lemon honey gouramis, pitbull plec and Endler Livebearers

Water changes of 25-30% is done each week and temperature is at 26.4'C

Am treating with melafix at the moment and today doesn't look to bad but still promienant against his albino colouration (he has gone a more Orange in colour lately especially around the head region)

Shows no interest in my two females, both male and 1 female i obtained from LFS back in June 2008 and other female recently obtained elsewhere (cheers "L Numbermad")

Is it a disease or an injury he sustained in my tank??

Am i being paranoid after my recent disaster???

is his cap on his head red to ? also sometimes the first spine on the dorsal fin goes red if so this a sign he is ready to spawn. but only going buy from what i have witnessed if his cap is visiable i would say he wants to breed,