Thanks for the recent replies
I cant isolate them as mum said no more tanks and im 23!!!! otherwise i'd love to set up a quartine tank.
Both fish concerned are eating, which is strange. The coral red platy isn't red hes losing some of his colour could be due to stress???
the molly looks pretty sorry for herself at the moment, she keeps looking at me for help, yet theres not much i can do, as they really don't have any symptoms that i can treat???

i feel pretty sad that theres not much i can do.
Molly is a couple months old is one of the young ones A.I.M gave me. The coral red platy i've had abit longer. i use to have two but one died ages ago (internal worms) that was a male.
I'm just doing 10% water changes hoping they perk up. Only filter media im using is Carbon, fliter floss, normal sponges and estiblished hex nodes from other tank (which has no disease)
Maybe they dont like my new design???
I have thought maybe the lights are too bright (hence the hiding) as i have Power glow tube and Aqua Glow tube in my Duo 600 tank.

i don't know!!!