I have two glowlight tetras I bought at my lfs both are females but they had large stomachs when I bought them but now one has a massive stomach so how do I tell if it is pregnant or just fat and wat should I do? Other tank mates are three lemon tetras, one bleeding heart tetra, two cory cats and my pictus and blue phantom plec are isolated with a netting on one side of the tank to keep the plec from my plants until they are healthier and established and don't worry the plec is fine he is not botherd and eats a lot still although I don't know how the pictus ended up in there any way how do I tell and wat should I do about the glowlights