This size maintains the 1” rule for co-living. Experienced keepers have identified this as a good size because it is typically not too large to introduce starter fish nor too small to live with larger Discus.
Medium– Medium Discus are generally about 3.5-4.5” in length.Small discus typically range from 2.5-3.5″. It is best to keep Discus sizes within 1” of each other in order to reduce aggression and maintain tranquility in the tank. This can be an issue if there are much larger Discus in the tank.
DISCUS FISH SIZE FULL
Small– At full maturity, some Discus remain small.Not only will limited space alter the ability for the fish to thrive, but it could lead to a failure to adapt to the aquarium. However, it is critical for collectors to realize that in a few months the Discus will be much larger and will need space to grow. With such a small appearance, it may be very tempting to get several starter fish to make the appearance of a tank seem more robust. Starter– Starter fish are generally very small and range from 2-2.5” in size.The age as well as the size of the fish at maturity will greatly impact the overall are of the fish. It is important for keepers to provide adequate aquarium space so that Discus can grow to their fullest potential. The following chart provides a breakdown of general growth: A larger tank will be needed to house more fish.įor first-time Discus keepers, the starter size may be misleading for just how large the fish will get at full maturity by the age of 2.5 years.
However, with that in mind, up to 3-5 Discus thrive in a 50-60-gallon tank. It is important for keeper’s to remember that Discus are social fish and enjoy being a part of a group. With that in mind, aquarium size must be considered from start to finish of the fish’s lifecycle. Because of their shape, they are as wide as they are long. The size of Discus fish can range, but are classified as a medium fish and are expected to be 6-10”.
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