u/Ratzinspace

This is more of a silly question but I've had my cat for about four years now and he's great, my only question is why is his side profile so straight? When I look on Google every cat has a curved nose ridge and his is very straight. I don't think anything's wrong I was just curious as to if anyone else had a cat like this! I think it makes him look really cute (1 is my cat and 2 is what I mean by other cats noses because I feel like a verbal explanation is kind of confusing)

My friend owns a 30gal guppy tank that's well over 2 years established. Recently his water has become super cloudy and he keeps losing fish. He had one pregnant girl pineconing tonight which prompted him to ask me to make this post :( his water parameters are where they should be although his nitrates are in the high end (~40ppm) but his guppy's have lived in that tank perfectly fine for over two years now. He recently bought new fish from a local vendor and due to a somewhat recent case of gill flukes (that were successfully (?) treated) the tank currently has aquarium salt and since the new deaths, prazipro. His guppies are being lethargic and hanging out at the bottom of the tank along with rapid gill movement. He has a bubbler in there atm and nothing seems physically wrong with the guppies to the eye other than behavior. He has a heater and a filter. We don't know what to do or what's going on if I can give any other information that may help I can try my best to answer questions. This happened so out of the blue and he's never dealt with something like this before