Physical Characteristics:

• Size: Blue Diamond Discus can grow to about 12-15 cm (5-6 inches) in diameter, though some individuals may reach up to 20 cm (8 inches) under optimal conditions.
• Body: The body is round and laterally compressed, giving the fish a disc-like shape, which is characteristic of all discus species. The Blue Diamond variety is known for its solid, iridescent blue color that covers the entire body, with no visible markings or patterns. This uniform coloration is one of its most distinguishing features.
• Fins: The dorsal and anal fins are long and extend toward the tail, giving the fish a streamlined yet elegant appearance. The fins also carry the same blue coloration, often with a slight translucent edge.

外形特征：

• 体型：蓝钻七彩神仙鱼的直径通常可达 12-15 厘米（5-6 英寸），但在最佳饲养条件下，部分个体甚至可以长到 20 厘米（8 英寸）。
• 体型：体型呈圆形，侧扁，形似圆盘，这是所有七彩神仙鱼的共同特征。蓝钻七彩神仙鱼以其通体均匀、带有虹彩光泽的蓝色而闻名，没有任何可见的斑纹或图案。这种均匀的体色是其最显著的特征之一。
• 鳍：背鳍和臀鳍较长，延伸至尾部，使鱼体呈现出流线型而优雅的姿态。鳍也同样呈蓝色，边缘通常略带半透明。