help please

hi there! One of my blue dwarf gouramis is looking VERY weird. He literally looks like some one just threw dirt all over him and his fins. I shared some pictures of him in this post as well. His fins are also very odd right now and kind of look like fin rot but fin rot doesn't have any side...

There is something wrong with my female guppy. When I woke up this morning, she had a bent spine and was having a hard time swimming. She was very gaunt and has loss of color. I took her out of the main tank and put her in a plastic bin with warm water and water conditioner. Her spine was really...