Orange Chromide

Adults grow to about 7–8 cm in length. Their body is characterized by a high oval shape, strongly compressed laterally. The dorsal and anal fins are low, extending along the body from head to tail. The main body coloration ranges from gray to silvery, dotted with many small orange specks. A noticeable dark spot is located in the central part of the body. Breeders have also developed bright yellow forms of this fish. Sexual dimorphism is weakly expressed, making it very difficult to distinguish males and females.

The natural habitat of this fish is the water bodies of the Indostan peninsula and the island of Sri Lanka in Southeast Asia. It can be found in the lower reaches of rivers, estuaries (flooded river mouths) characterized by brackish water, and coastal lagoons. Etroplus maculatus belongs to euryhaline species, capable of successfully existing in a wide range of salinities, including completely fresh water bodies.

This fish is distinguished by its peaceful and friendly nature, getting along well with other non-aggressive species of similar size. It is worth noting that during the spawning period, significantly smaller individuals may be attacked if the aquarium is not spacious enough. In brackish water, suitable neighbors include some livebearers, and in fresh water, other peaceful cichlids and characins. Intraspecific relationships are based on hierarchy, where older and larger individuals dominate. It is recommended to keep these fish in groups of 8 or more. With fewer individuals, they may show nervousness, especially if they feel a potential threat from large neighbors.

For a small group of these fish, an aquarium of at least 200 L is recommended. Sand substrate, supplemented with piles of rocks, as well as live or artificial plants and several snags, are typically used as decor elements. Water conditions can be both fresh and brackish, with a salt concentration of up to 15 grams per liter being permissible. The main task when keeping Orange Chromides is to ensure consistently high water quality. In addition to an effective filtration system, weekly water changes of 25% to 50% of the volume are necessary.

The diet of the Orange Chromide should include a significant amount of protein-rich foods, such as Artemia, Daphnia, mosquito larvae, and bloodworms. Vegetable additives, such as spirulina flakes, are also necessary. Dry foods in the form of flakes or granules are also a good choice if their composition is enriched with both proteins and vegetable components.

The onset of spawning is triggered by a gradual increase in water temperature and salinity, mimicking the dry season in their natural environment. During the breeding period, a temporary pair forms from the group, which remains together for quite a long time. The parents carefully tend to the clutch and actively protect it, and then the fry, from other aquarium inhabitants. The eggs are attached to a stone or plant with thin threads, which prevents their accidental displacement. The incubation period is 2 days at 27°C, and after another 2–3 days, the fry begin to swim freely but remain under the care of the female. When keeping fry in a community tank, their survival rate is usually very low. This is due to several reasons: the difficulty of full feeding in a large volume of water, the tendency of young and inexperienced Orange Chromides to eat their own eggs, and the fact that fry often become prey for other fish, even despite parental protection. To preserve the offspring, a decorative element (stones, plants) with attached eggs can be transferred to a separate tank with identical water conditions. It is not necessary to move the parents.

The main cause of most diseases in Leaf Fish is unsuitable keeping conditions and poor-quality nutrition. If initial symptoms are observed, it is first necessary to check water parameters and the concentration of dangerous substances such as ammonia, nitrites, and nitrates. If the indicators deviate from the norm, they should be brought back into order, and only then should treatment begin. More detailed information on symptoms and treatment methods can be found in the "Aquarium Fish Diseases" section.

When choosing an Orange Chromide, preference should be given to individuals with bright, uniform coloration and clean fins. Avoid fish with signs of damage, white spots, or film on the body, as the species is susceptible to infectious diseases when stressed. A healthy fish should be active and interested in its surroundings, rather than constantly staying in a corner or at the water surface.

• inspect the fish for a sunken belly or unnatural spinal deformities
• observe their behavior: in the store, fish should exhibit calm, exploratory behavior, not signs of aggression or apathy
• ask the seller about the keeping conditions, as adaptation to fresh or brackish water requires gradual acclimation