The term Red White Melon Discus most likely refers to the White Face Red Melon variety of Discus fish (Symphysodon). This specific strain is highly prized for its vibrant, solid red or orange body contrasted by a pale, creamy white or yellow face.

“红白瓜七彩神仙鱼”一词很可能指的是白脸红瓜七彩神仙鱼（学名：Symphysodon）。这种鱼因其鲜艳的纯红色或橙色鱼身与淡白色或乳黄色的面部形成鲜明对比而备受推崇。