I need some help please, I have 3, three year old cherry barbs. One male and two female. One of them has become very bloated around the middle and I can't find any picture to tell me if this is due to "eggs" or due to dropsy. I also have 3 lemon tetras, 3 lamplite tetras, 5 neons and a cuckoo catfish. No one else is doing this, I treated the tank for dropsy with maracyn-2 and she has not changed. Please help with info or links to pictures on the net to help guide me to my next step. Thank you.