I recently got a hold of 2 new blood parrots about 3 inches or so and they went in my 75g and seem fully happy. However, one of them had a small spotty black patch which over the past few days has began to cover the fish. The other one had none of these spots and has now gotten one small one on him. I would presume this is a color change in part due to the environment being very neutral earthy colors but i want to make sure it isnt a weird kind of fungus. Let me know if you want pictures of the other parrot. The water parameters are all 0, the plants manage to keep up with the waste created. My elephantnose died the other day but the cause was unknown, potentially from harassment and stress from the parrots being added. They dont seem to be acting weird or anything and seem happy to tug on plants and swim around without bother from the other fish in the tank.