hi everyone , this morning i found 1 of my molly fry in the top of the filter box , after removing it , i notice 1 of its eyes , the eye itself was enlarged was dark black colour@ the outside looks red. the other eye is ok . i have no idea how long it was in the filter it would have been a 1week since i counted them all , the fry are now 6 weeks old. hope someone can give me information on what i can do to . thankss