stomach

Today I noticed one of my female bolivian rams had a large bump protruding from her stomach it is brownish in color... IMG_1971_zps35611122.jpg Photo by kaysparf | Photobucket IMG_1968_zps28d396f4.jpg Photo by kaysparf | Photobucket IMG_1970_zps6909948f.jpg Photo by kaysparf | Photobucket...

So I have four danios of the glofish type. My orange one has always had a very round stomach and then today we just noticed that it is concave. There is a dent in it's stomach and if you look beneath the fish, you can see a darker spot in the dent. I am not sure what happend...the fish is not...

I attached for you some pics of my dead molly fish hoping u can idetify the cause of death and hopefully help me save my fish I have a 60*40*30 cm tank I only raise Mollys I have about 20 fish all are from the same family (original parents died) but several generations the died fish is a female...