This study examined the morphological growth of the larvae from discus fish (Symphysodon species). The development of the larvae in laboratory conditions was monitored from their hatching day to the 32nd day. Three pairs of broodstock were used to produce the larvae. They were kept in 60L glass aquaria. All larvae were taken from one batch. They were kept in the broodstock tank 32 days. Every day, five larvae were randomly selected. The first was collected at 10 DAH. The second was collected at 10 DAH. The third was collected at 32 DAH. The larvae were placed in any solution and examined under a light microscope. They were then photographed with a color video camera. The yolk sac measured 1/3 of the total length on the first day, and was reduced to 1/6 by 4 days. The mouth was open at 3 days and rely only on exogenous foods. At 4 days, fecal feces were observed at the anus. The head had adhesive glands until 10 days. After 7-9 days, the body pigmentation was translucent. It then became opaque after 10-15 days. At 30-32 days, the larvae’s body was disc-shaped like their parents. This was when the stres bants of the lateral emerged. The 30-35-day mark was the end of the prejuvenile and larval period.